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MCQs

Total Questions : 194 | Page 19 of 20 pages
Question 181. The heat capacity depends on
  1.    Mass of material
  2.    Volume of material
  3.    Temperature of material
  4.    Energy of material
 Discuss Question
Answer: Option A. -> Mass of material
Answer: (a).Mass of material
Question 182. Heat capacity (C) of any material can be expressed by the formula
  1.    ΔQ/T
  2.    Q/ΔT
  3.    Q/T
  4.    ΔQ/ΔT
 Discuss Question
Answer: Option D. -> ΔQ/ΔT
Answer: (d).ΔQ/ΔT
Question 183. The circular paths in which electrons revolve around the nucleus are called
  1.    Energy levels
  2.    Orbits
  3.    Shells
  4.    All of above
 Discuss Question
Answer: Option D. -> All of above
Answer: (d).All of above
Question 184. The number of electrons is ten in
  1.    s-subshell
  2.    p-subshell
  3.    d-subshell
  4.    f-subshell
 Discuss Question
Answer: Option C. -> d-subshell
Answer: (c).d-subshell
Question 185. Exothermic compounds are
  1.    highly volatile
  2.    rarely stable
  3.    very stable
  4.    can be decomposed into their elements
 Discuss Question
Answer: Option C. -> very stable
Answer: (c).very stable
Question 186. Purpose of Lean Burn engines is to
  1.    produce less air pollution
  2.    consume lesser oxygen
  3.    produce more efficient fuel combustion
  4.    use them in sky rockets
 Discuss Question
Answer: Option C. -> produce more efficient fuel combustion
Answer: (c).produce more efficient fuel combustion
Question 187. In order to form products from reactants, it is important to
  1.    develop energy profile diagrams
  2.    pass the transition barrier
  3.    pass the energy barriers
  4.    pass the activation energy tests
 Discuss Question
Answer: Option C. -> pass the energy barriers
Answer: (c).pass the energy barriers
Question 188. LPG stands for
  1.    liquefied purified gas
  2.    liquefied patrol gas
  3.    liquefied petroleum gas
  4.    latent petroleum gas
 Discuss Question
Answer: Option C. -> liquefied petroleum gas
Answer: (c).liquefied petroleum gas
Question 189. Endothermic reactions include
  1.    conversion of sodium nitrate crystal to sodium nitrate solution
  2.    upon heating, hydrogen results in water
  3.    neutralization of acids and alkalis
  4.    respiration
 Discuss Question
Answer: Option A. -> conversion of sodium nitrate crystal to sodium nitrate solution
Answer: (a).conversion of sodium nitrate crystal to sodium nitrate solution
Question 190. If NaOH(aq) reacts with HCl(aq), reaction can be known as
  1.    combustion
  2.    Thermal decomposition
  3.    Neutralization
  4.    Respiration
 Discuss Question
Answer: Option C. -> Neutralization
Answer: (c).Neutralization

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