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10th Chemistry

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

Class 10 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 # 2026-1st Annual -Evening Paper (Local)
3

FBISE-10th-2026-1st Annual-Evening Paper Objectives (Local area)

Total 12 MCQs

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1 / 12

1) Which half reaction shows reduction?

2 / 12

2) Which fuel is commonly blended with petrol to reduce emissions?

3 / 12

3) On a rate of reaction graph, a steeper slope (for gradient) indicates:

4 / 12

4) In an electrolytic cell, the anode is:

5 / 12

5) When preparing a salt using an excess metal, the excess metal is removed by:

6 / 12

6) In sublimation substance changes directly from:

7 / 12

7) Which of the following salts is soluble in water?

8 / 12

8) Which physical parameter increases when an exothermic reaction occurs rapidly?

9 / 12

9) Which method is used to  prepare a soluble salt from an acid and an alkali?

10 / 12

10) Complete the given equation:

11 / 12

11) Which catalyst is used in the given reaction? 

12 / 12

12) 1 dm3 =

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FBISE Past Paper # 2025-Local Area Paper
23

10th-FBISE- 2025-Local Area-Objectives

Total 12 MCQs

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1 / 12

1) Which statement about water is correct?

2 / 12

2) Which of the following can behave both as Bronsted acid or Bronsted base?

3 / 12

3) Halogenation of methane in diffused sunlight does NOT produce:

4 / 12

4) Proteins are essential for the formation of:

5 / 12

5) Identify the Arrhenius base:

6 / 12

6) The correct equilibrium constant expression for the given reaction:

2A + B  ⇌ 3C

7 / 12

7) Seperation of minerals from gangue by some physical method is called:

8 / 12

8) The envelope of gases and water vapours surrounding the planet earth is called:

9 / 12

9) Concentration of reactants and products in moles.dm-3 in a dilute solution represents:

10 / 12

10) In Solvay’s process, which two chemicals are dissolved in water to form ammonical brine?

11 / 12

11) Which gas is widely used for welding and cutting metals?

12 / 12

12) Which of the following is an air pollutant?

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FBISE Past Paper # 2025-Hard Area Paper
12

10th-FBISE- 2025-Hard Area-Objectives

Total 12 MCQs

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1 / 12

1) Concentration of reactants and products in moels.dm-3 in a dilute solution represents:

2 / 12

2) During metallurgy, which step is used in the concentration process of metals?

3 / 12

3) Halogenation of methane in direct sunlight produces:

4 / 12

4) In Solvay process, which gas is obtained by heating NaHCO3?

5 / 12

5) Identify Arrhenius acid from the following:

6 / 12

6) Which statement about water is wrong?

7 / 12

7) The envelope of gases and water vapours surrounding the planet earth is called:

8 / 12

8) The correct equilibrium expression for the given reaction is:

2CO + O2  ⇌  2CO2

9 / 12

9) Fats and oils are used to manufacture:

10 / 12

10) Which of the following can behave both as Bronsted acid and Bronsted base?

11 / 12

11) Which of the following is an air pollutant?

12 / 12

12) Which compound is used as an antiseptic in hospital operating rooms?

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FBISE Past Paper # 2016-1
65

FBISE- 2016-1-Objectives

Total 12 MCQs

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1 / 12

1) Formic acid contains functional group?

2 / 12

2) Which process produces an alkane?

3 / 12

3) Which of the following is not the macroscopic characteristic of forward reaction?

4 / 12

4) What is the particular pH range at which potatoes grow?

5 / 12

5) Which human activity results in contamination of water bodies?

6 / 12

6) Chalcopyrite is the ore of:

7 / 12

7) By dehydration, we mean the removal of:

8 / 12

8) In the following reaction which substance is donating an electron pair?

NH3 + BF3 → H3N-BF3

9 / 12

9) Stem “But” stands for how many carbon atoms?

10 / 12

10) Highest temperature in Mesosphere is:

11 / 12

11) Raffinose (C18H32O16) is a:

12 / 12

12) Which of the following reactions will not have any units for Kc?

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FBISE Past Paper # 2016-2
41

FBISE- 2016-2-Objectives

Total 12 MCQs

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1 / 12

1) Which product is obtained when chloromethane is reduced?

2 / 12

2) A double arrow (⇌ ) indicates:

3 / 12

3) Which is not a dextrose sugar?

4 / 12

4) NH3 can not be classified as a base by:

5 / 12

5) Which is an alcohol?

6 / 12

6) Which is used for dehydrohalogenation of Alkyl halides?

7 / 12

7) What are the units for :

N2 + O2  ⇌ 2NO 

8 / 12

8) Which compound is not a saturated hydrocarbon?

9 / 12

9) The formula of Halite is:

10 / 12

10) Which gas has lowest percentage in the air?

11 / 12

11) Which of the following is not a water born disease?

12 / 12

12) Which of the following is a Lewis base?

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FBISE Past Paper # 2016-Supply paper
0

FBISE-10th-2016-Supply Objectives

Total 12 MCQs

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1 / 12

1) Formic acid contains functional group:

2 / 12

2) Which of the following is used to remove permanent hardness in water?

3 / 12

3) Which product is obtained when chloromethane (or methyl chloride) is reduced?

4 / 12

4) Compound of ……………………. help to ensure antiseptic conditions in hospitals operating rooms.

5 / 12

5) Raffinose C18H36O16 on hydrolysis forms ……………………… simple sugars.

6 / 12

6) Galena is the ore of ………………….. metal.

7 / 12

7) ……………………… is used to make liquid soap and shaving cream.

8 / 12

8) In the following reaction, which specie is donating an electron pair?

NH3 + BF3 → H3N-BF3

 

9 / 12

9) …………………… is used to manufacture urea fertilizer.

10 / 12

10) ……………………. causes breathing difficulties, asthma and eye irritation.

11 / 12

11) Which of the following is a Lewis Base?

12 / 12

12) In an irreversible reaction equilibrium is:

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FBISE Past Paper # 2017-1
80

FBISE- 2017-1-Objectives

Total 12 MCQs

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1 / 12

1) By dehydration we mean the removal of:

2 / 12

2) The gastric juice has pH = 1. It means a:

3 / 12

3) Marble buildings and statues are destroyed by acid rain due to reaction of sulphuric acid:

4 / 12

4) Which scientist proposed the law of mass action?

5 / 12

5) At equilibrium state of a reversible reaction:

6 / 12

6) Which of the following is evolved during ripening of fruits and vegetables:

7 / 12

7) If an alkane is having 5 carbon atoms then the number of hydrogen atoms in this alkane will be:

8 / 12

8) n-Pentane, iso-Pentane and neo-Pentane are having different:

9 / 12

9) Ice floats over liquid water because:

10 / 12

10) Ultraviolet radiation are absorbed by ozone in the stratosphere, that is why:

11 / 12

11) Kw is called ionization constant of water. Its value can be obtained by:

12 / 12

12) For a general reaction 2A + B ⇌ 2 C + D

The rate of forward reaction will be equal to:

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FBISE Past Paper # 2017-2
34

FBISE- 2017-2-Objectives

Total 12 MCQs

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1 / 12

1) Reduction of ethyl chloride (C2H5OH) produces:

2 / 12

2) Addition of hydrogen in the vegetable oil is due to presence of:

3 / 12

3) Which of the following substance reacts with KMnO4 to produce ethyleneglycol?

4 / 12

4) For a reversible reaction, Kc = [C]2 / [A][B]

The correct equation for above reaction is:

5 / 12

5) Which of the following is used as Antacid?

6 / 12

6) The given functional group is found in:

7 / 12

7) Which of the following is an ore of Aluminium?

8 / 12

8) The emission of CO, NO and unburned hydrocarbons can can be reduced by using:

9 / 12

9) On boiling temporary hard water, the substance which is settled down is:

10 / 12

10) What happens when ammonium carbamate is distilled with steam?

11 / 12

11) Which of the following is a heterocyclic compound?

12 / 12

12) The pH of Lemon juice is 2. The H+ ion concentration [H]+ in the Lemon juice is:

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FBISE Past Paper # 2018-1
109

FBISE- 2018-1-Objectives

Total 12 MCQs

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1 / 12

1) Which of the following layers contains ozone gas?

2 / 12

2) Which of the following reacts with concentrated alkaline KMnO4 to produce oxalic acid?

3 / 12

3) Which of the following is a heterocyclic compound?

4 / 12

4) Which of the following is a Lewis base?

5 / 12

5) Which of the following is used as domestic fuel?

6 / 12

6) In an irreversible reaction, equilibrium is:

7 / 12

7) Most of air pollution is caused by:

8 / 12

8) Formic acid contains functional group?

9 / 12

9) Plants convert glucose into:

10 / 12

10) Which of the following is used as raw materials for preparation of urea?

11 / 12

11) Which of the following is not a waterborne disease?

12 / 12

12) What is the colour of phenolphthalein in acidic medium?

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FBISE Past Paper # 2018-2
93

FBISE- 2018-2-Objectives

Total 12 MCQs

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1 / 12

1) Which of the following cannot be classified as Arrhenius acid?

2 / 12

2) Which of the following does not happen, when a system is at equilibrium state?

3 / 12

3) Which of the following is not source of starch?

4 / 12

4) The density of water is maximum at:

5 / 12

5) Which of the following is used for dehydrohalogenation of alkyl halides?

6 / 12

6) Which of the following is used for ripening of fruits?

7 / 12

7) Which of the following is responsible for acid rain?

8 / 12

8) In which of the following compounds, oxygen is attached to two alkyl groups?

9 / 12

9) Which of the following is used as raw material for Solvay process?

10 / 12

10) Which of the following causes brain damage in children?

11 / 12

11) Which of the following is a homocyclic compound?

12 / 12

12) What is the colour of methyl red in basic solution?

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FBISE Past Paper # 2018-Supply
48

FBISE- 2018-Supply-Objectives

Total 12 MCQs

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1 / 12

1) In which of the following hydrocarbons, oxygen is attached to two alkyl groups?

2 / 12

2) The reduction of alkyl halides takes place in the presence of:

3 / 12

3) Raffinose (C18H32O16) is a:

4 / 12

4) At what pH does Phenolphthalein change colour?

5 / 12

5) For a reversible reaction, Kc = [HI]2 / [H2][I2]

Which substance is the product of the reaction?

6 / 12

6) Which of the following acids is used in the manufacturing of many chemicals, drugs, dye, paints and explosives?

7 / 12

7) What is the unit of equilibrium constant for:

N2 + O2  ⇌ 2NO2

8 / 12

8) …………………. is used to make rectified spirit by fermentation process:

9 / 12

9) Which process produces an alkane?

10 / 12

10) Chemical formula of slaked lime is:

11 / 12

11) ………………… is used for artificial ripening of fruits.

12 / 12

12) The atmospheric layer that has the temperature of -5 °C to -93 °C is:

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FBISE Past Paper # 2019-1
81

FBISE- 2019-1-Objectives

Total 12 MCQs

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1 / 12

1) What are the units of Kc for N2 + O2  ⇌ 2NO2 ?

2 / 12

2) Which of the following is a Lewis acid?

3 / 12

3) Each DNA nucleotide consists of:

4 / 12

4) Which of the following process is reduction in nature?

5 / 12

5) Fehling’s solution is used to determine the presence of:

6 / 12

6) Which of the following is an aldehyde?

7 / 12

7) The substance which fight against diseases in living organisms are:

8 / 12

8) Raffinose produces ……………………. units of simple sugars when hydrolyzed.

9 / 12

9) What will happen if [OH-] increases?

10 / 12

10) Permanent harness of water can be removed by:

11 / 12

11) Identify the molecule produced, when electrical discharges pass through the oxygen in air:

12 / 12

12) Chemical formula of ammonium carbamate is:

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FBISE Past Paper # 2019-2
66

FBISE- 2019-2-Objectives

Total 12 MCQs

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1 / 12

1) Formic acid contains …………………. functional group.

2 / 12

2) A drain cleaner contains 1.0 x 10⁻⁸ M, OH- concentration, this solution is:

3 / 12

3) Identify the compound responsible for acid rain:

4 / 12

4) For which reaction, Kc has NO units?

5 / 12

5) Percentage of nitrogen in urea is:

6 / 12

6) The linkage which joins two amino acid units is called:

7 / 12

7) In the given reaction which species is donating an electron pair?

NH3 + BF3 → H3N-BF3

8 / 12

8) Baeyer’s test is used to detect the presence of:

9 / 12

9) Which compound has two halogen atoms on adjacent carbon atoms?

10 / 12

10) The word Vitamin was first used by:

11 / 12

11) The volumetric ratio of hydrogen and oxygen in water is:

12 / 12

12) Halite is an ore of:

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FBISE Past Paper # 2022-Local Area
86

FBISE- 2022-Local Area-Objectives

Total 12 MCQs

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1 / 12

1) One molecule of H2O produces one H+ ion and one OH- ion on dissociation. Pick the correct option.

2 / 12

2) A solution contains 1.0 x 10-7 M, [OH-] concentration. This solution is:

3 / 12

3) Glucose is a Hydrocarbon (C6H12O6). Identify glucose from the following.

4 / 12

4) …………………… is the formula of urea.

5 / 12

5) Dehydrohalogenation means the removal of:

6 / 12

6) Unsaturated hydrocarbons undergo Bromination. Which of the following will undergo water bromination test?

7 / 12

7) ………………………. is used as a catalyst added to prepare propane according to the following equation.

CH3-CH=CH2  +  H2 → CH3-CH2-CH3

8 / 12

8) Which of the following is a Lewis Base?

9 / 12

9) Predict the unit of Kc for the following given reversible reactions.

2 SO2 + O2 ⇌  2SO3

Kc = [SO3]2 / [SO2]2 [O2]

10 / 12

10) Which of the following is a reddish brown gas?

11 / 12

11) Lowest temperature in stratosphere is:

12 / 12

12) …………………… is one of the petroleum fractions.

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FBISE Past Paper # 2022-Hard Area
102

FBISE- 2022-Hard Area-Objectives

Total 12 MCQs

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1 / 12

1) Peptide linkage is present in:

2 / 12

2) HCl is an acid. Identify the reason from the following:

3 / 12

3) According to the Lewis concept, which of the following is an electron pair donor?

4 / 12

4) Which of the following is a secondary pollutant?

5 / 12

5) Identify the product in the given chemical reaction:

6 / 12

6) Which of the following has general formula R-O-R?

7 / 12

7) Slag is obtained as impurity in the metallurgical processes. Identify slag from the following:

8 / 12

8) Predict the unit of Kc for the given reaction:

9 / 12

9) Slaked lime is used in Solvay process. What is slaked lime?

10 / 12

10) Atmosphere is composed of………………….. layers:

11 / 12

11) The pH of given solution is:

12 / 12

12) Unsaturated hydrocarbons have multiple Carbon-Carbon bonds. Which of the following is an unsaturated hydrocarbon?

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FBISE Past Paper # 2023-1
86

FBISE- 2023-1-Objectives

Total 12 MCQs

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1 / 12

1) Identify the monosaccharide from the following carbohydrates:

2 / 12

2) Which of the following is an aldehyde?

3 / 12

3) In organic chemistry, the term dehydrohalogenation means:

4 / 12

4) In an aqueous solution of hydrochloric acid the concentration of H+ ion is 1×10-4 mol.dm-3. This solution is:

5 / 12

5) In a homologous series, two adjacent compounds differ by:

6 / 12

6) 1 Kilogram of water will occupy minimum space at:

7 / 12

7) The lowest temperature in the stratosphere is:

8 / 12

8) Which of the following gases is used to destroy harmful bacteria in water?

9 / 12

9) A reaction in which products react together to reform the original reactants is called:

10 / 12

10) Which of the following organic compounds is found in gasoline (Petrol)?

11 / 12

11) Predict the unit of Kc for the following  reversible reaction:

N2O4 ⇌  2 NO2

12 / 12

12) IUPAC name of C8H18 is:

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FBISE Past Paper # 2023-2
73

FBISE- 2023-2-Objectives

Total 12 MCQs

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1 / 12

1) Identify Lewis base from the following:

2 / 12

2) The atmosphere is an envelop of:

3 / 12

3) The purpose of using Hoffmann Voltmeter as shown in the figure is:

4 / 12

4) Select the name of following alkyl radical:

5 / 12

5) Dark brownish viscous liquid (Petroleum) is formed underground due to:

6 / 12

6) The chemical method used to recognize chemical equilibrium state is called:

7 / 12

7) Urea contains …………………….. percentage of nitrogen:

8 / 12

8) ………………… is a good source of protein.

9 / 12

9) Identify the organic compound in the following molecule:

10 / 12

10) The following chemical equation represents:

H2O ⇌ H+1  +   OH-1

11 / 12

11) Water is used as an excellent cooler (coolent) in industries because of its:

12 / 12

12) Predict the unit of equilibrium constant KC for the following reaction:

2ICl ⇌ I2 + Cl2

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FBISE Past Paper # 2024-1
94

FBISE- 2024-1-Objectives

Total 12 MCQs

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1 / 12

1) Percentage of Nitrogen in urea is:

2 / 12

2) The density of water is maximum at:

3 / 12

3) The functional group of aldehyde is:

4 / 12

4) Complete the reaction:

H2CO3 + 2NaOH → …………………..+ 2H2O

5 / 12

5) The reduction of alkyl halides takes place in the presence of:

6 / 12

6) Molecules of amino acids join to form a protein by eliminating………………………… molecule.

7 / 12

7) One ozone molecule has …………………………… number of oxygen atoms.

8 / 12

8) The pH of acid rain is less than:

9 / 12

9) Oil detergent is used to concentrate a metallic ore in:

10 / 12

10) The soap forms scum with:

11 / 12

11) In given expression, what is the product?

12 / 12

12) The percentage of Nitrogen in the air is:

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FBISE Past Paper # 2024-2
97

FBISE- 2024-2-Objectives

Total 12 MCQs

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1 / 12

1) In electrolytic refining of copper, ……………………… is used as anode called:

2 / 12

2) For given reaction Kc = ?

P + Q ⇌ R + S

3 / 12

3) The naturally occurring metallurgical compounds are:

4 / 12

4) Ozone is an allotropic form of:

5 / 12

5) Methane reacts with explosion with:

6 / 12

6) Complete the reaction:

AgNO3 + NaCl → ………………….+ NaNO3

7 / 12

7) Percentage of Sodium chloride in sea water:

8 / 12

8) Which gas has highest percentage in the air?

9 / 12

9) If peptide has amino group on left, then ………………….. group will be on the right side:

10 / 12

10) Which water causes kettle (pots) to fur?

11 / 12

11) Stem “But-” represents ……………. number f carbon atoms.

12 / 12

12) The pH of acid rain is less than:

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FBISE Past Paper # 2024-2nd Annual
105

FBISE- 2024-2nd Annual-Objectives

Total 12 MCQs

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1 / 12

1) The correct equilibrium constant expression for the following reaction is:

N2 + 3H2 ⇌ 2NH3

2 / 12

2) Which gas is widely available in fuel cylinders?

3 / 12

3) Identify the functional group in the following molecules:

4 / 12

4) Titration is used to recognize the reaction for:

5 / 12

5) Select Lewis acid from the following:

6 / 12

6) Two molecules of amino acids join to form a bond called as:

7 / 12

7) Select the Arrhenius acid-base pair from the following:

8 / 12

8) Atmosphere is an envelope of:

9 / 12

9) Dehydrohalogenation of alkyl halides gives:

10 / 12

10) The name of CH3(CH2)2CH3 is:

11 / 12

11) Petroleum is thick dark liquid composed mostly of:

12 / 12

12) In which process, urea in soil is converted into ammonium carbamate?

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