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MCQs

Total Questions : 194 | Page 20 of 20 pages
Question 191. Conversion of solid Ammonium Nitrate (NH₄NO₃(s)) into aqueous Ammonium Nitrate (NH₄NO₃(aq)) is an example of
  1.    combustion
  2.    Thermal decomposition
  3.    Neutralization
  4.    dissolving
 Discuss Question
Answer: Option D. -> dissolving
Answer: (d).dissolving
Question 192. Burning of hydrogen
  1.    is an endothermic reaction
  2.    acts as fuel in rockets etc.
  3.    is fatal for plant habitats
  4.    results in acid rains
 Discuss Question
Answer: Option B. -> acts as fuel in rockets etc.
Answer: (b).acts as fuel in rockets etc.
Question 193. Energy conservation mechanisms do not include
  1.    insulating lofts with pylons
  2.    insulating cavity walls with polyurethane
  3.    double glazing windows
  4.    prevention of heat loss
 Discuss Question
Answer: Option A. -> insulating lofts with pylons
Answer: (a).insulating lofts with pylons
Question 194. Incorrect statement is: Mineral acids...
  1.    have simpler molecular structures.
  2.    are more corrosive.
  3.    commonly found in nature.
  4.    are man made.
 Discuss Question
Answer: Option C. -> commonly found in nature.
Answer: (c).commonly found in nature.

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