AARPAN INSTITUTE
BHANDARA
Test / Exam Name: Chemical Reaction & Standard: 10th Subjec
Equation
Student Name: Section: Roll No
Questions: 2
Instructions
1. ATTEMPT ALL THE QUESTION
Section-A Select and write the most appropriate option out of the four opti
Q1.Which among the following is (are) double displacement reaction(s)?
1. Pb + CuCl2 → PbCl2 + Cu
2. Na2SO4 + BaCl2 → BaSO4 + 2NaCl
3. C + O2 → CO2
4. CH4 + 2O2 → CO2 + 2H2O
1. 1 and 4
2. 2 only
3. 1 and 2
4. 3 and 4
Q2.Which among the following statement(s) is (are) true? Exposure of silver chl
to sunlight for a long duration turns grey due to:
1. The formation of silver by decomposition of silver chloride.
2. Sublimation of silver chloride.
3. Decomposition of chlorine gas from silver chloride.
4. Oxidation of silver chloride.
1. 1 Only
2. 1 and 3
3. 2 and 3
4. Only 4
Q3.Which of the following are exothermic processes?
1. Reaction of water with quick lime.
2. Dilution of an acid.
3. Evaporation of water.
4. Sublimation of camphor (crystals).
1. 1 and 2
2. 2 and 3
3. 1 and 4
4. 3 and 4
Q4.The following reaction is used for the preparation of oxygen gas in the labora
, Assertion: The following chemical equation is an example of thermal
decomposition reaction.
Heat
2KClO3 (s) −−−−−→ 2KCl(s) + 3O2 (g)
Catalyst
Reason: Heat gets released in the decomposition reactions.
Q6.Which among the following statement (s) is/ are true? Exposure of silver chlo
to sunlight for a long duration turns grey due to:
1. The formation of silver by decomposition of silver chloride.
2. Sublimation of silver chloride.
3. Evolution of chlorine gas from silver chloride.
4. Oxidation of silver chloride.
1. (i) only.
2. (i) and (iii)
3. (ii) and (iii)
4. (iv) only
Q7.Three beakers labelled as A, B and C each containing 25mL of water were ta
A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the bea
A, B and C respectively. It was observed that there was an increase in the
temperature of the solutions contained in beakers A and B, whereas in case o
beaker C, the temperature of the solution falls. Which one of the following
statement (s) is (are) correct?
1. In beakers A and B, exothermic process has occurred.
2. In beakers A and B, endothermic process has occurred.
3. In beaker C, exothermic process has occurred.
4. In beaker C, endothermic process has occurred.
1. Only 1
2. Only 2
3. 1 and 4
4. 2 and 3
Q8.While performing the experiment with raisins to determine the percentage of
water absorbed by them, a student made following measurements:
1. Mass of water in the beaker = 40 g.
2. Mass of raisins before soaking = 5 g.
3. Mass of raisins after soaking for 2 hours = 8 g.
4. Mass of water left in the beaker after the experiment = 35 g.
The percentage of water absorbed by raisins is:
40 g - 35 g
1. 35 g
× 100
40 g - 35 g
2. 40 g
× 100
8 g - 5 g
3. 8 g
× 100
8 g - 5 g
4. 5 g
× 100
BHANDARA
Test / Exam Name: Chemical Reaction & Standard: 10th Subjec
Equation
Student Name: Section: Roll No
Questions: 2
Instructions
1. ATTEMPT ALL THE QUESTION
Section-A Select and write the most appropriate option out of the four opti
Q1.Which among the following is (are) double displacement reaction(s)?
1. Pb + CuCl2 → PbCl2 + Cu
2. Na2SO4 + BaCl2 → BaSO4 + 2NaCl
3. C + O2 → CO2
4. CH4 + 2O2 → CO2 + 2H2O
1. 1 and 4
2. 2 only
3. 1 and 2
4. 3 and 4
Q2.Which among the following statement(s) is (are) true? Exposure of silver chl
to sunlight for a long duration turns grey due to:
1. The formation of silver by decomposition of silver chloride.
2. Sublimation of silver chloride.
3. Decomposition of chlorine gas from silver chloride.
4. Oxidation of silver chloride.
1. 1 Only
2. 1 and 3
3. 2 and 3
4. Only 4
Q3.Which of the following are exothermic processes?
1. Reaction of water with quick lime.
2. Dilution of an acid.
3. Evaporation of water.
4. Sublimation of camphor (crystals).
1. 1 and 2
2. 2 and 3
3. 1 and 4
4. 3 and 4
Q4.The following reaction is used for the preparation of oxygen gas in the labora
, Assertion: The following chemical equation is an example of thermal
decomposition reaction.
Heat
2KClO3 (s) −−−−−→ 2KCl(s) + 3O2 (g)
Catalyst
Reason: Heat gets released in the decomposition reactions.
Q6.Which among the following statement (s) is/ are true? Exposure of silver chlo
to sunlight for a long duration turns grey due to:
1. The formation of silver by decomposition of silver chloride.
2. Sublimation of silver chloride.
3. Evolution of chlorine gas from silver chloride.
4. Oxidation of silver chloride.
1. (i) only.
2. (i) and (iii)
3. (ii) and (iii)
4. (iv) only
Q7.Three beakers labelled as A, B and C each containing 25mL of water were ta
A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the bea
A, B and C respectively. It was observed that there was an increase in the
temperature of the solutions contained in beakers A and B, whereas in case o
beaker C, the temperature of the solution falls. Which one of the following
statement (s) is (are) correct?
1. In beakers A and B, exothermic process has occurred.
2. In beakers A and B, endothermic process has occurred.
3. In beaker C, exothermic process has occurred.
4. In beaker C, endothermic process has occurred.
1. Only 1
2. Only 2
3. 1 and 4
4. 2 and 3
Q8.While performing the experiment with raisins to determine the percentage of
water absorbed by them, a student made following measurements:
1. Mass of water in the beaker = 40 g.
2. Mass of raisins before soaking = 5 g.
3. Mass of raisins after soaking for 2 hours = 8 g.
4. Mass of water left in the beaker after the experiment = 35 g.
The percentage of water absorbed by raisins is:
40 g - 35 g
1. 35 g
× 100
40 g - 35 g
2. 40 g
× 100
8 g - 5 g
3. 8 g
× 100
8 g - 5 g
4. 5 g
× 100
