ACP
AARAMBH CHAPTERWISE PROBLEMS
Class-10th
PRASHANT KIRAD
,PRASHANT KIRAD
(Options acche se padhna)
VERY SHORT QUESTIONS (1 Mark)
(A) Multiple Choice Questions (MCQ's)
1. When aqueous solutions of potassium iodide and lead nitrate are mixed, an
insoluble substance separate out. The chemical equation for the reaction
involved in
a) Kl + PbNO₃ → Pbl + KNO₃
b) 2KI + Pb(NO₃)₂ → PbI₂ + 2KNO₃
c) KI + Pb(NO₃)₂ → PbI + KNO₃
d) KI + PbNO₃ → PbI₂ + KNO₃
2. The balanced chemical equation showing reaction between quicklime and
water is
a) 2CaO + H₂O → 2CaOH + H₂ + Heat
b) CaO + H₂O → Ca(OH)₂ + H₂ + Heat
c) CaO + H₂O → Ca(OH)₂ + Heat
d) 2CaO + 3H₂O → 2Ca(OH)₃ + O₂ + Heat
3. A metal ribbon X burns in oxygen with a dazzling white flame, forming a
white ash Y. The correct description of X, Y and the type of reaction are
a) X = Ca; Y = CaO, Decomposition
b) X = Mg; Y = MgO, Combination
c) X = Al; Y = Al₂O₃, Thermal decomposition
d) X = Zn; Y = ZnO, Endothermic
4. Which of the following reactions is different from the remaining three ?
a) NaCl + AgNO₃ → AgCl + NaNO₃
b) CaO + H₂O → Ca(OH)₂
c) KNO₃ + H₂SO₄ → KHSO₄ + HNO₃
d) ZnCl₂ + H₂S → ZnS + 2HCl
JOSH METER?
, PRASHANT KIRAD
5. Reema took 5ml of lead nitrate solution in a beaker and added
approximately 4ml of potassium iodide solution to it. What would she observe ?
a) The solution turned red
b) Yellow precipitate was formed
c) White precipitate was formed
d) The reaction mixture became hot
6. Which of the following is a necessary condition for all chemical reactions ?
a) The reactants should be in the same state
b) Energy should be supplied to the reactants
c) The reactants should be at the same temperature
d) There should be physical contact between the reactants
7. A dilute ferrous sulphate solution was gradually added to the beaker
containing acidified permanganate solution. The light purple colour of the
solution fades and finally disappears. Which of the following is the correct
explanation for the observation ?
a) KMnO₄ is an oxidising agent, it oxidises FeSO₄
b) FeSO₄ acts as an oxidising agent and oxidises KMnO₄
c) The colour disappear due to dilution, no reaction is involved
d) KMnO₄ is an unstable compound and decomposes in the presence of FeSO₄ to
a colourless compound
8. Which of the following is an example of decomposition reaction?
a) Melting of glaciers
b) Rusting of old bridges
c) Rotting of fruits and vegetables
d) Absorption of carbon dioxide by oceans
9. On placing a copper coin in a test tube containing green ferrous sulphate
solution, it will be observed that the ferrous sulphate solution
a) turns blue, and a grey substance is deposited on the copper coin
b) turns colourless and a grey substance is deposited on the copper coin
c) turns colourless and a reddish - brown substance is deposited on the copper
coin
d) remains green with no change in the copper coin
10. Which among the following is/are true about slaking of lime and the
solution of lime water formed ?
a) It is an endothermic reaction
b) It is exothermic reaction
c) The resulting solution Will be acidic
AARAMBH CHAPTERWISE PROBLEMS
Class-10th
PRASHANT KIRAD
,PRASHANT KIRAD
(Options acche se padhna)
VERY SHORT QUESTIONS (1 Mark)
(A) Multiple Choice Questions (MCQ's)
1. When aqueous solutions of potassium iodide and lead nitrate are mixed, an
insoluble substance separate out. The chemical equation for the reaction
involved in
a) Kl + PbNO₃ → Pbl + KNO₃
b) 2KI + Pb(NO₃)₂ → PbI₂ + 2KNO₃
c) KI + Pb(NO₃)₂ → PbI + KNO₃
d) KI + PbNO₃ → PbI₂ + KNO₃
2. The balanced chemical equation showing reaction between quicklime and
water is
a) 2CaO + H₂O → 2CaOH + H₂ + Heat
b) CaO + H₂O → Ca(OH)₂ + H₂ + Heat
c) CaO + H₂O → Ca(OH)₂ + Heat
d) 2CaO + 3H₂O → 2Ca(OH)₃ + O₂ + Heat
3. A metal ribbon X burns in oxygen with a dazzling white flame, forming a
white ash Y. The correct description of X, Y and the type of reaction are
a) X = Ca; Y = CaO, Decomposition
b) X = Mg; Y = MgO, Combination
c) X = Al; Y = Al₂O₃, Thermal decomposition
d) X = Zn; Y = ZnO, Endothermic
4. Which of the following reactions is different from the remaining three ?
a) NaCl + AgNO₃ → AgCl + NaNO₃
b) CaO + H₂O → Ca(OH)₂
c) KNO₃ + H₂SO₄ → KHSO₄ + HNO₃
d) ZnCl₂ + H₂S → ZnS + 2HCl
JOSH METER?
, PRASHANT KIRAD
5. Reema took 5ml of lead nitrate solution in a beaker and added
approximately 4ml of potassium iodide solution to it. What would she observe ?
a) The solution turned red
b) Yellow precipitate was formed
c) White precipitate was formed
d) The reaction mixture became hot
6. Which of the following is a necessary condition for all chemical reactions ?
a) The reactants should be in the same state
b) Energy should be supplied to the reactants
c) The reactants should be at the same temperature
d) There should be physical contact between the reactants
7. A dilute ferrous sulphate solution was gradually added to the beaker
containing acidified permanganate solution. The light purple colour of the
solution fades and finally disappears. Which of the following is the correct
explanation for the observation ?
a) KMnO₄ is an oxidising agent, it oxidises FeSO₄
b) FeSO₄ acts as an oxidising agent and oxidises KMnO₄
c) The colour disappear due to dilution, no reaction is involved
d) KMnO₄ is an unstable compound and decomposes in the presence of FeSO₄ to
a colourless compound
8. Which of the following is an example of decomposition reaction?
a) Melting of glaciers
b) Rusting of old bridges
c) Rotting of fruits and vegetables
d) Absorption of carbon dioxide by oceans
9. On placing a copper coin in a test tube containing green ferrous sulphate
solution, it will be observed that the ferrous sulphate solution
a) turns blue, and a grey substance is deposited on the copper coin
b) turns colourless and a grey substance is deposited on the copper coin
c) turns colourless and a reddish - brown substance is deposited on the copper
coin
d) remains green with no change in the copper coin
10. Which among the following is/are true about slaking of lime and the
solution of lime water formed ?
a) It is an endothermic reaction
b) It is exothermic reaction
c) The resulting solution Will be acidic
