Question types

Unit - 6.1 Chemical Reaction question types

31 questions across 7 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.

31
Questions
7
Question groups
5
Question types
Sample Questions

Unit - 6.1 Chemical Reaction questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 17MCQ1 Mark
Which one is not a chemical decomposition reaction?
  • A
    2NaHCO3 → Na2CO3 + H2O + CO2
  • Zn+2HCl → ZnCl2 + H2
  • C
    2Pb3 04 → 6PbO + O2
  • D
    CuCO3 → CuO + CO2

Answer: B.

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Q 19MCQ1 Mark
The chemical reaction which proceeds with release of heat energy is known as
  • A
    endothermic
  • exothermic
  • C
    either (a) or (b)
  • D
    none of these

Answer: B.

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Q 20MCQ1 Mark
Which reaction does not take place?
  • FeSO4 + Cu → CuSO4 + Fe
  • B
    Zn+2HCl → ZnCl2 + H2
  • C
    Pb(NO3)2 + Mg → Mg(NO3)2 + Pb
  • D
    ZnSO4 + Mg → MgSO4 + Zn

Answer: A.

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Q 21MCQ1 Mark
Which reaction represents chemical combination ?
  • A
    2NaHCO3 → Na2CO3 + H2O + CO2
  • CaO + H2O → Ca(OH)2
  • C
    CuSO4 + Fe → FeSO4 + Cu
  • D
    AgNO3 + NaCl → AgCl + NaNO3

Answer: B.

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Column AColumn B
1. An oxide exhibits acidic as well as basic also.(a) Precipitation reaction
2. Decomposition of copper carbonate on heating to form copper oxide and carbon dioxide(b) Displacement reaction
3. The chemical reaction between silver nitrate solution and sodium chloride solution.(c) Endothermic reaction
4. A reaction in which zinc metal dissolves in dilute sulphuric acid.(d) Amphoteric
 (e) Decomposition reaction
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