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MCQs

Total Questions : 194 | Page 11 of 20 pages
Question 101. Value of standard reduction potential for strong reducing agent is
  1.    Large negative value
  2.    Zero
  3.    Large positive value
  4.    Negligibly small
 Discuss Question
Answer: Option A. -> Large negative value
Answer: (a).Large negative value
Question 102. The electrolyte used for the purpose of salt bridge is
  1.    NaCl
  2.    NH₄NO₃
  3.    KNO₃
  4.    NaNO₃
 Discuss Question
Answer: Option B. -> NH₄NO₃
Answer: (b).NH₄NO₃
Question 103. The overall positive value for the reaction potential predicts that process is energetically
  1.    Impossible
  2.    Not feasible
  3.    Feasible
  4.    Both a and b
 Discuss Question
Answer: Option C. -> Feasible
Answer: (c).Feasible
Question 104. The difference of potential of two electrodes when concentration of solution is 1M each at S.T.P is called
  1.    Cell reaction
  2.    Electrode potential
  3.    Cell voltage
  4.    Standard cell potential
 Discuss Question
Answer: Option D. -> Standard cell potential
Answer: (d).Standard cell potential
Question 105. In ionic crystals, heat energy is taken in to
  1.    form carbonates
  2.    form sulphates
  3.    break crystal lattices
  4.    to form covalent bonds
 Discuss Question
Answer: Option C. -> break crystal lattices
Answer: (c).break crystal lattices
Question 106. Chemical reaction with oxygen is called
  1.    oxidation
  2.    activation
  3.    combustion
  4.    reduction
 Discuss Question
Answer: Option C. -> combustion
Answer: (c).combustion
Question 107. Reaction of Carbon(s) with O₂(g) is an example of
  1.    combustion
  2.    Thermal decomposition
  3.    Neutralization
  4.    Respiration
 Discuss Question
Answer: Option A. -> combustion
Answer: (a).combustion
Question 108. Methane (CH₄) is an excellent fuel because
  1.    it is basically an endothermic reaction
  2.    it gives off a lot of heat
  3.    it produces carbon monoxide
  4.    it contains a lot of carbon
 Discuss Question
Answer: Option B. -> it gives off a lot of heat
Answer: (b).it gives off a lot of heat
Question 109. Non-renewable fossil fuels include
  1.    coal
  2.    oil
  3.    petrol
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 110. Upon absorbing heat energy, ionic crystal results into
  1.    other compounds
  2.    ionic solution of same compound
  3.    oxides of same compounds
  4.    water as a byproduct
 Discuss Question
Answer: Option B. -> ionic solution of same compound
Answer: (b).ionic solution of same compound

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