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12th Chemistry

Reference Books : National Book Foundation, KPK & Balochistan Text Book

Class 12 Chemistry notes according to latest FBISE syllabus following 2006 Curriculum. Contains detailed video lectures, solved exercises, review questions, MCQs, pdf notes and past board papers solution.

FBISE Past Papers Objectives
Explanation Videos
FBISE Past Paper # 2025-2nd Annual Objectives
28

FBISE-12th-2025-2nd Annual Objectives

Total 17 MCQs

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1 / 17

1) Which carboxylic acid derivative is least reactive?

2 / 17

2) Which element in period 3 has the highest electronegativity?

3 / 17

3) The allotrope of carbon known as “Bucky Ball” has now many carbon atoms in its simplest molecule?

4 / 17

4) Which gas is mainly responsible for acid rain?

5 / 17

5) Phenol can be prepared from benzene sulphonic acid by:

6 / 17

6) Which technique is based on absorption of electromagnetic radiation?

7 / 17

7) Which aldehyde will show aldol condensation?

8 / 17

8) Which polymer is formed by condensation reaction?

9 / 17

9) The delocalized pi-electrons in benzene are responsible for:

10 / 17

10) The building blocks of proteins are:

11 / 17

11) Which compound shows hydrogen bonding?

12 / 17

12) Which reaction mechanism is involved in chlorination of methane in the presence of sunlight?

13 / 17

13) Beryllium hydroxide is classified as:

14 / 17

14) Which group I elements shows crimson red colour on flame test?

15 / 17

15) Which transition metal is used as a catalyst in Haber’s process?

16 / 17

16) Titration is an example of:

17 / 17

17) In SN1 reaction, the rate depends on:

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FBISE Past Paper # 2025-Local Area Objectives
62

FBISE-12th-2025-Local Area Objectives

Total 17 MCQs

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1 / 17

1) Which alcohol is NOT the direct product of reaction when Grignard reagent react with aldehydes or ketones?

2 / 17

2) Which statement is correct?

3 / 17

3) Which of the following alkyl halides will yield alkenes more easily?

4 / 17

4) A fire fighter’s helmet made of plastic becomes hard after a fire Helmet is made of:

5 / 17

5) Which will be the least reactive towards nucleophilic addition reactions?

6 / 17

6) Empirical formula of an organic compound is C3H8O5 and molecular mass is 372 g/mol. Molecular formula of this compound is:

7 / 17

7) Succinic acid resembles with substrate and inhibits the enzyme activity by attaching on its active site, it is an example of:

8 / 17

8) Among sulphates of Group-II elements ……………… has the lowest solubility in water?

9 / 17

9) Which of the following is a bad leaving group?

10 / 17

10) The expected shape of [Fe(H2O)6]+2 based on its coordination number is:

11 / 17

11) Heterolytic cleavage of covalent bond converts bonded atoms into:

12 / 17

12) Chemical breakdown of organic compounds by microorganisms, e.g. bacteria is called:

13 / 17

13) The number of signals in H1-NMR spectrum of Acetone will be:

14 / 17

14) Ozone is being mainly destroyed by:

15 / 17

15) What are the expected products when Butanone is oxidized?

16 / 17

16) Which of the following has lowest density?

17 / 17

17) Which alcohol will yield oily layer on heating, according to Lucas test?

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FBISE Past Paper # 2025-Hard Area Objectives
30

FBISE-12th-2025-Hard Area Objectives

Total 17 MCQs

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1 / 17

1) The presence of specific functional groups in a molecule is commonly identified by:

2 / 17

2) Succinic acid resembles with substrate and inhibits the enzyme activity by attaching on its active site. It is an example of:

3 / 17

3) Which of the 3rd period elements has the highest melting point?

4 / 17

4) Which of the following alkyl halides is most likely to undergo an SN1 reaction?

5 / 17

5) Which of the hair dye penetrates the hair shaft and provides long lasting colours but can damage the hair as well?

6 / 17

6) Ozone is being mainly destroyed by:

7 / 17

7) Which of the following statement is CORRECT regarding the density of Group-1 elements?

8 / 17

8) Which alcohol will yield alkene more easily among the given options?

9 / 17

9) Which alcohol will yield immediately oily layer according to Lucas test?

10 / 17

10) Which of the following will be more reactive towards nucleophilic addition reactions?

11 / 17

11) Identify the organic compound:

12 / 17

12) Which alcohol is NOT the direct product of reaction when Grignard reagent reacts with aldehyde or ketones?

13 / 17

13) Which sulphates of Group-II elements has the HIGHEST solubility in water?

14 / 17

14) Which of the following Nuclei will be magnetically active in NMR spectroscopy?

15 / 17

15) Carboxylic acids are reduced to which product on reaction with LiAlH4?

16 / 17

16) Coordination number in [Cu (NH2-NH2)2] SO4 is:

17 / 17

17) Homolytic cleavage of covalent bond converts the bonded atoms into:

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FBISE Past Paper # 2016-1
987

FBISE- 2016-1-Objectives

Total 17 MCQs

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1 / 17

1) The IUPAC name of the given compound is:

2 / 17

2) The oxidation states -1, +1, +3, +5 and +7 are shown by all the halogens except:

3 / 17

3) The long chains of monosaccharides are called:

4 / 17

4) 3Ca + N2 → ?

 

5 / 17

5) Which of the following is NOT an alternative to ozone depleting Chlorofluorocarbon (CFCs) ?

6 / 17

6) The compounds, n-butane and isobutane are best considered as:

7 / 17

7) The nitration of phenol at 25 degree centigrade produces:

8 / 17

8) Which of the following technique DOES NOT involve electromagnetic radiations?

9 / 17

9) Pale green is a characteristic flame colour of:

10 / 17

10) Double bond is formed as a result of:

11 / 17

11) In the organic compounds, the carbon atom generally forms:

12 / 17

12) Due to inert pair effect, the elements of group IV having electronic configuration ns2, np2 will form:

13 / 17

13) The functional group having following structure represents the family called:

14 / 17

14) Reduction of alkyl nitriles gives:

15 / 17

15) Group VIII elements are generally called:

16 / 17

16) Which one of the following oxides is basic in nature?

17 / 17

17) Acetone can be obtained by the oxidation of:

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FBISE Past Paper # 2016-2
585

FBISE- 2016-2-Objectives

Total 17 MCQs

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1 / 17

1) Which compound of Xenon requires more severe conditions, if prepared by direct combination of Xenon and molecular fluorine?

2 / 17

2) 1-Butene and 2-Butene are ……………………………isomers of each other.

3 / 17

3) Keeping in view the size of atoms, which order is correct?

4 / 17

4) Acetone can be prepared by dry distillation of:

5 / 17

5) Rock salt (Halite) is a mineral containing ………………………. metal.

6 / 17

6) Which of the following alcohols will immediately form oily layer with conc,HCl in anhydrous ZnCl2?

7 / 17

7) Which substance acts as catalyst in the depletion of Ozone layer?

8 / 17

8) The brown gas formed, when metal reduces conc. Nitric acid is:

9 / 17

9) Which acid can dissolve vitreous silica?

10 / 17

10) Which of the following compounds can produce white precipitates with ammonical silver nitrate?

11 / 17

11) Which one is ortho and para directing group in electrophilic substitution reactions of benzene?

12 / 17

12) An aqueous solution of an organic compound reacts with Na2CO3 to produce carbon dioxide. Which one of the following could be the organic compound?

13 / 17

13) Which one of these polymers is an addition polymer?

14 / 17

14) Which one of the following is not micro-nutrient for plants?

15 / 17

15) Coating of which element upon iron can lead to sacrificial corrosion, if damaged:

16 / 17

16) When CO2 is made to react with ethyl magnesium iodide followed by the acid hydrolysis, the product formed is:

17 / 17

17) β,β‘-Dichloroethyl sulphide is commonly known as:

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FBISE Past Paper # 2016-3
417

FBISE- 2016-3-Objectives

Total 17 MCQs

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1 / 17

1) Chlorine (VII) oxide (Cl2O7) reacts with water to give  a strong acid:

2 / 17

2) CaO + SO3   →  CaSO4

The above reaction is a type of :

3 / 17

3) Cyclopropane is an example of:

4 / 17

4) Isomers of a substance must have:

5 / 17

5) Formaldehyde on reaction with methyl magnesium bromide produces:

6 / 17

6) Benzene can undergo all the following reactions except:

7 / 17

7) Mass spectroscopy is used to determine:

8 / 17

8) Ecosystem is the smallest unit of:

9 / 17

9) The electrophile in aromatic sulphonation is :

10 / 17

10) Chose the mismatched pair from the following:

Polymer ————- Monomer

11 / 17

11) Isobutyric acid is also called:

12 / 17

12) Which one of the following oxides is acidic?

13 / 17

13) The formation of soap by the reaction of Fat and Sodium hydroxide is called:

14 / 17

14) The oxidation number of central metal ion in the complex Na[Mn(CO)5] is:

15 / 17

15) Water adds to acetylene in the presence of mercuric sulphate dissolved in conc.H2SO4 to give a stable product called:

16 / 17

16) Bronze is an alloy of :

17 / 17

17) The refining of petroleum is carried out by the process called:

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FBISE Past Paper # 2016-S1
301

FBISE- 2016-Supply-1-Objectives

Total 17 MCQs

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1 / 17

1) Geometrical isomerism is shown by:

2 / 17

2) In oxidation of chromium III to chromium VI, the green colour will change into:

3 / 17

3) The component of blood that carries oxygen in the body is:

4 / 17

4) Which of the following gases is not pollutant?

5 / 17

5) Phenol is more acidic than alcohol. Which statement is correct?

6 / 17

6) Nail polish remover base commonly contains a mixture of two organic solvents:

7 / 17

7) Which of the following can be prepared in the laboratory by dry distillation of (HCOO)2Ca?

8 / 17

8) Which one of the following shows high boiling point?

9 / 17

9) Which of the following can not be prepared directly from acetic acid?

10 / 17

10) Sodalime is:

11 / 17

11) When AgNO3 is added to Lessaigne’s solution, which colour is formed for iodine?

12 / 17

12) Which of the following oxides is amphoteric in nature?

13 / 17

13) Cannizaro’s reaction is not given by:

14 / 17

14) The carbonates of alkali metals are not affected by heat except:

15 / 17

15) CH3-CH2-CH2-Br on treatment with alcoholic KOH gives:

16 / 17

16) SN2 reaction can be best carried out with:

17 / 17

17) The electrophile in aromatic sulphonation is:

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FBISE Past Paper # 2016-S2
264

FBISE- 2016-Supply-2-Objectives

Total 17 MCQs

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1 / 17

1) Central carbon atom in tertiary butyl alcohol is:

2 / 17

2) Co-ordination number of platinum in [Pt Cl (NO2) (NH3)4 ]+2 is:

3 / 17

3) The element NOT present in all proteins is:

4 / 17

4) The reagent used to reduce carboxylic acid to an alcohol is:

5 / 17

5) During nitration of benzene, active nitrating agent is:

6 / 17

6) Aldehydes are prepared by:

7 / 17

7) Which one of the sulphate is water soluble?

8 / 17

8) Which of the following derivatives cannot be prepared directly from Acetic acid?

9 / 17

9) Electron affinity is a measure of:

10 / 17

10) Vinyl acetylene combines with concentrated HCl to form:

11 / 17

11) Which one of the following is not a nucleophile?

12 / 17

12) The element belongs to group-IVA is:

13 / 17

13) According to Lewis concept, ethers behave as:

14 / 17

14) Tollen’s test is given by:

15 / 17

15) The reaction between fat and caustic soda is called:

16 / 17

16) The catalyst used in contact chamber process is:

17 / 17

17) Which is the strongest oxy-acid of chlorine?

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FBISE Past Paper # 2017-1
283

FBISE- 2017-1-Objectives

Total 17 MCQs

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1 / 17

1) Ozone layer is present at a height of about:

2 / 17

2) When phenol reacts with CH3COCl, the product formed is:

3 / 17

3) Which of the following can undergo Aldol condensation reaction?

4 / 17

4) Which complex reflects back whole of white light, its colour will be:

5 / 17

5) Petrochemicals are classified into how many classes?

6 / 17

6) Most abundant macro molecules on earth are:

7 / 17

7) Hydrolysis of nitriles produces:

8 / 17

8) Which of the following is not present in acid rain?

9 / 17

9) Which of the following is a trace mineral in human diet?

10 / 17

10) Which of the following compounds gives an acidic solution with water?

11 / 17

11) IUPAC name of Valeric acid is:

12 / 17

12) Which of the following alcohols will be the most easily dehydrated to give an alkene?

13 / 17

13) Full name of Bucky Balls is:

14 / 17

14) Which of the following alkyl halides cannot be formed by direct reaction of alkanes with halogens?

15 / 17

15) Benzoic acid is obtained by the oxidation of:

16 / 17

16) Which of the following oxide is used as catalyst in Contact process?

17 / 17

17) Which region of electromagnetic spectrum is involved in NMR Spectroscopy?

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FBISE Past Paper # 2017-2
278

FBISE- 2017-2-Objectives

Total 17 MCQs

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1 / 17

1) Reaction of alkylhalides with Na metal yields:

2 / 17

2) Which of the following radiations can vibrate the bonds?

3 / 17

3) The reaction of carboxylic acid with an alcohol is called:

4 / 17

4) For which mechanisms, the first step involved is the same?

5 / 17

5) Green is the characteristic flame colour of:

6 / 17

6) Which of the following is a bidentate ligand?

7 / 17

7) Which of the following alkyne would not produce a ketone on hydration?

8 / 17

8) In which of the following compounds benzene rings are isolated?

9 / 17

9) It is possible to distinguish between optical isomers by using:

10 / 17

10) Prosthetic groups are:

11 / 17

11) When AgNO3 is added to the Lassaign’s Solution, Which colour is formed for chlorine?

12 / 17

12) Which of the following reagents will react with both aldehyde and ketones?

13 / 17

13) In leather industry, which one of the following is used?

14 / 17

14) Magnetic moment (μ) of an atom or ion is the measure of its numbers of un-paired electrons.

15 / 17

15) Polymers which are prepared from more than one kind of monomers are called:

16 / 17

16) All lipids are:

17 / 17

17) Which one of the following compounds does not contain carboxylic group?

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FBISE Past Paper # 2017-3

158

FBISE-12th-2017-3-Objectives

Total 17 MCQs

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1 / 17

1) When Benzene reacts with Bromine in the presence of FeBr3, the product obtained is:

2 / 17

2) β–β‘-Dichloroethyl sulphide is commonly known as:

3 / 17

3) When an alkyl nitrile is hydrolysed in the presence of an acid or a base, the product obtained is:

4 / 17

4) Aluminium does not react with nitric acid at any concentration because of the formation of a layer of:

5 / 17

5) Iodoform test is used to distinguish:

6 / 17

6) Laughing gas is chemically:

7 / 17

7) Which one is correct order of hydration energy of Na+, Mg++, Al +++ ions?

8 / 17

8) Which of the following enzyme brings about the hydrolysis of fats?

9 / 17

9) When ethyl magnesium bromide is reacted with acetone followed by acid hydrolysis, the product obtained is:

10 / 17

10) Rectified spirit is convertred into absolute alcohol by:

11 / 17

11) Many fluoro compounds likeCF4 and SiF6 show inertness due to:

12 / 17

12) The type of hybridization of carbon in ethylene molecule is:

13 / 17

13) The name of mineral CaSO4.2H2O is:

14 / 17

14) The electrophile in aromatic sulphonation is:

15 / 17

15) Which of the following is a non-typical transition element:

16 / 17

16) Which of the three elements are needed for the healthy growth of plants?

17 / 17

17) Which of the following is structure of benzoic acid:

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FBISE Past Paper # 2017-S1
145

FBISE-12th-2017-Supply-1-Objectives

Total 17 MCQs

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1 / 17

1) …………………………. are sulphur analogues of alcohols:

2 / 17

2) Which of the following is not an air pollutant?

3 / 17

3) Acidic hydrogen is present in:

4 / 17

4) What is the correct electronic configuration of Cr? (Atomic number of Cr = 24)

5 / 17

5) Identify the most stable carbocation among the following:

6 / 17

6) Which property increases going down the group II-A of periodic table?

7 / 17

7) Which of the following is correct decreasing order of bond length of Halogens?

8 / 17

8) Which of the following order is correct regarding the acidity of carboxylic acids?

9 / 17

9) Which of the following will react with both aldehyde and ketones?

10 / 17

10) Which of the following compounds have no attraction at all with water?

11 / 17

11) Esterification is the reaction of …………………. with an alcohol.

12 / 17

12) The dyes which have two or more -N=N- groups are called:

13 / 17

13) ………………….. is an example of disaccharides.

14 / 17

14) The secondary structure of protein is stabilized by:

15 / 17

15) Infrared radiations are involved in:

16 / 17

16) A chiral carbon is a carbon which has ………………different groups attached with it:

17 / 17

17) Which of the following is not an organic compound?

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FBISE Past Paper # 2017-S2
184

FBISE-12th-2017-Supply-2-Objectives

Total 17 MCQs

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1 / 17

1) The reaction between fat and NaOH is called:

2 / 17

2) The element Caesium resembles with:

3 / 17

3) For which mechanism, the first step involved is same?

4 / 17

4) Alcohol and ether show the phenomenon of:

5 / 17

5) Which of the following is non-typical transition element:

6 / 17

6) Keeping in view the sizes of atoms, which order is correct one?

7 / 17

7) Ketones are prepared by the oxidation of:

8 / 17

8) Vinyl acetylene combines with HCl to form:

9 / 17

9) -CHO group in benzene is:

10 / 17

10) Newspaper can be recycled again and again ……………… times:

11 / 17

11) Benzene can not undergo:

12 / 17

12) Tincal is a mineral of:

13 / 17

13) The reagent which reacts both with aldehyde and ketones is:

14 / 17

14) Acetamide is prepared by:

15 / 17

15) Aluminium oxide is:

16 / 17

16) The anhydride of HClO4 is:

17 / 17

17) Laughing gas is chemically:

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FBISE Past Paper # 2018-1
88

FBISE-12th-2018-1-Objectives

Total 17 MCQs

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1 / 17

1) The industrial smog contains smoke mixed with:

2 / 17

2) Which one of the following is NOT a disaccharide?

3 / 17

3) Which one of the following will NOT give iodoform test on reaction with I2/NaOH?

4 / 17

4) In the reaction with aqueous copper (II) complex , [Cu(H2O)6]+2 , ammonia acts as a ligand as well as:

5 / 17

5) The technique which is used to determine the position of carbon atoms in an organic compound is:

6 / 17

6) Br-1 reduces H2SO4 to form:

7 / 17

7) The alcohol with greater reactivity with respect to the cleavage of its O-H bond is:

8 / 17

8) Reaction of carboxylic acids with LiAlH4 results in the formation of:

9 / 17

9) The electrophile in the aromatic sulphonation reaction of benzene is:

10 / 17

10) Ethers can be prepared by the reaction of alkyl halides with:

11 / 17

11) The meta directing group among the following is:

12 / 17

12) The correct name of the complex ion, []Zn (NH2-CH2-CH2-NH2)3]+2 is:

13 / 17

13) -SH is the functional group present in the organic compounds known as:

14 / 17

14) The reagent which is used to distinguish between aldehydes and alcohols is:

15 / 17

15) Which of the following reducing agents reduces the aromatic nitro compounds to amines:

16 / 17

16) Which of the following will not produce nitrite on heating?

17 / 17

17) Nail polish remover is composed of:

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FBISE Past Paper # 2018-2
78

FBISE-12th-2018-2-Objectives

Total 17 MCQs

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1 / 17

1) The MORE acidic compound among the following is:

2 / 17

2) Which dye is used in boot polish?

3 / 17

3) 2,3-Dimethyl-2-butene on reaction with O3/H2O gives:

4 / 17

4) Which of the followings is NOT present in RNA?

5 / 17

5) Geometrical isomerism is shown by:

6 / 17

6) The coordination number of Zinc in the complex ion [Zn(NH2-CH2-CH2-NH2)3]+2 is:

7 / 17

7) Which one of the following is a poor leaving group in SN-reactions?

8 / 17

8) The reagent used to detect phosphorous present in an organic compound is:

9 / 17

9) The ONLY alkaline earth metal which reacts with alkalies is:

10 / 17

10) Acetamide can be prepared by heating:

11 / 17

11) In IR spectrum of an organic compound, a strong peak at 1720 cm-1 is due to:

12 / 17

12) Peroxy Acetyl Nitrate (PAN) is a secondary pollutant, which affects:

13 / 17

13) The alcohol with greater reactivity with respect to the cleavage of its C-O bond is?

14 / 17

14) Which one of the following can be used to distinguish between Fe+2 and Fe+3 ions?

15 / 17

15) Acetal is produced when acetaldehyde reacts with:

16 / 17

16) Which one is NOT correct order of stability of oxidation states of group-IVA elements?

17 / 17

17) Sarette reagent is:

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FBISE Past Paper # 2018-S
82

FBISE-12th-2018-Supply-Objectives

Total 17 MCQs

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1 / 17

1) In C2H6SO2 functional group is:

2 / 17

2) Which of the following is a simple protein?

3 / 17

3) Molecular formula of Catechol is:

4 / 17

4) With which wavelength is green colour associated?

5 / 17

5) Miticides are used to control:

6 / 17

6) Mordants are salts of:

7 / 17

7) Composition of Brass is:

8 / 17

8) Catalytic oxidation of benzene takes place in presence of……………………as catalyst.

9 / 17

9) Which of the following is NOT a dehydrating agent?

10 / 17

10) Which of the following is an acid catalysed reaction?

11 / 17

11) Tartaric acid is obtained from:

12 / 17

12) Stability order of simple alkyl carbocation is:

13 / 17

13) Malonic acid is a common name for:

14 / 17

14) [Ti(H2O)6] is of ……………….. colour.

15 / 17

15) Wat is the value of BOD for clean water?

16 / 17

16) Which of the following is MOST stable cation?

17 / 17

17) Which of the following will NOT give iodoform test?

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FBISE Past Paper # 2019-1
77

FBISE-12th-2019-1-Objectives

Total 17 MCQs

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1 / 17

1) Electronic configuration of a transition element X in +2 oxidation state is [Ar]3d5. What is its atomic number?

2 / 17

2) Acetic acid reacts with Na metal to form:

3 / 17

3) Which of the following elements form alloys?

4 / 17

4) Hydrogen bonding is maximum in:

5 / 17

5) Which region of electromagnetic radiation is used in IR spectroscopy?

6 / 17

6) Which of the following pair has both members from the same period of the periodic table?

7 / 17

7) Nucleic acids are the repeating units of:

8 / 17

8) Pyridine is:

9 / 17

9) Polyethylene is an example of:

10 / 17

10) R-CN gives, when it is reacted with LiAlH4:

11 / 17

11) The abnormal enlargement of thyroid gland is due to deficiency of …………… in diet.

12 / 17

12) A mixture consists of 40%(+) tartaric acid and 60%(-) tartaric acid. This mixture rotates plane polarized light:

13 / 17

13) The carbon atom in formaldehyde is:

14 / 17

14) Which of the following alloy is used in the preparation of Raney nickle?

15 / 17

15) The hard and the rigid rocky earth crust is called:

16 / 17

16) Which of the following metal hydroxide is LEAST soluble in water?

17 / 17

17) Which of the following is CORRECT?

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FBISE Past Paper # 2019-2
84

FBISE-12th-2019-2-Objectives

Total 17 MCQs

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1 / 17

1) The order of reactivity of alcohol with respect to -O-H bond cleavage is:

2 / 17

2) Very high energy electron beams are used in :

3 / 17

3) Good leaving group among the following is:

4 / 17

4) Which of the following is an amphoteric hydroxide?

5 / 17

5) The coordination number of carbonyl in [Ni(CO)4] is:

6 / 17

6) Which of the following will give benzoic acid, when reacted with alkaline KMnO4?

7 / 17

7) Which of the following compounds is NOT used to adhere two items together?

8 / 17

8) 1,3-Dibromobutane is:

9 / 17

9) Indicate the MOST acidic carboxylic acid:

10 / 17

10) Which of the following is NOT monohydric alcohol?

11 / 17

11) Which of the following occurs during the initiation stage of radical mechanism?

12 / 17

12) Identify X in the following reaction:

X + 4NaOH + 3I2 →  CHI3 + HCOONa + 3NaI + 3 H2O

13 / 17

13) Metal carbonates decompose on heating to give metal oxides and carbon dioxide. Which of the following metal carbonates is thermally most stable?

14 / 17

14) The hydrolysis of triglycerides by alkalies is called:

15 / 17

15) For a mixture containing 50%(+) Tartaric acid and 50%(-) Tartaric acid, which of the following statement is correct?

16 / 17

16) The designing and creation of chemicals that are NOT hazardous to people or environment is related to:

17 / 17

17) Which of the following is NOT a hydrocarbon?

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FBISE Past Paper # 2022-Hard Area Objectives
57

FBISE-12th-2022-Hard Area Objectives

Total 17 MCQs

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1 / 17

1) Nylon-6,6 is the polymer of:

2 / 17

2) HI is a strong base. It reduces H2SO4 to:

3 / 17

3) Which of the following nitrogenous bases is NOT present in DNA?

4 / 17

4) In IR Spectrum, a strong peak at 1720 cm-1 indicates the presence of:

5 / 17

5) Which of the following alcohols on reaction with K2Cr2O7/H2SO4 will give an alkene?

6 / 17

6) Identify the compound which shows geometrical isomerism:

7 / 17

7) Which of the following is meta directing group in the electrophilic substitution reactions of Monosubstituted Benzene?

8 / 17

8) Which of the following base will favour substitution reaction as compared to the elimination reaction?

9 / 17

9) Which of the following carbides is decomposed by water to form CH4 gas?

10 / 17

10) Which of the following tests is applied to differentiate between Ethanal and Propanal?

11 / 17

11) Predict the product of the reaction:

 

12 / 17

12) Geometry of [Pt(NH3)4]+2 is square planar. Hybridization of Pt in the complex is:

13 / 17

13) Oxidative cleavage of Ethane-1,2-diol (Glycol) with HIO4 gives:

14 / 17

14) Acetic acid is reacted with ammonia and resulting compound is strongly heated. Identify the compound formed?

15 / 17

15) In destructive distillation, Coal is heated at 500-1000 °C in the absence of air. It gives:

 

 

 

 

 

16 / 17

16) Identify green house gases:

17 / 17

17) Which of the following will form yellow coloured complex compound?

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