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CHEMISTRY MCQs

Total Questions : 2589 | Page 253 of 259 pages
Question 2521. The anode in a dry cell consists of
  1.    Cadmium
  2.    Graphite
  3.    Copper
  4.    Zinc
 Discuss Question
Answer: Option D. -> Zinc
Question 2522. Conversion of chemical energy into electrical energy occurs in
  1.    Electric heaters
  2.    A battery
  3.    Atomic bombs
  4.    Dynamo
 Discuss Question
Answer: Option B. -> A battery
Question 2523. The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called :
  1.    Galvanization
  2.    Alloy formation
  3.    Vulcanization
  4.    Zinc plating
 Discuss Question
Answer: Option A. -> Galvanization
Question 2524. Galvanization of iron is carried out using
  1.    Tin
  2.    Chromium
  3.    Zinc
  4.    Copper
 Discuss Question
Answer: Option C. -> Zinc
Question 2525. When a spoon is to be electroplated with nickel the spoon is
  1.    Dipped in a nickel sulphate solution
  2.    Coated with nickel sulphate and dried
  3.    Made anode and a pure nickel rod, the cathode
  4.    Made cathode and a pure nickel red, the anode
 Discuss Question
Answer: Option D. -> Made cathode and a pure nickel red, the anode
Question 2526. The working of a dry cell is based on
  1.    Spontaneous oxidation-reduction reaction
  2.    Combination reaction
  3.    Decomposition reaction
  4.    Electrolysis
 Discuss Question
Answer: Option D. -> Electrolysis
Question 2527. The anode of a dry cell is made up of
  1.    Cadmium
  2.    Iron
  3.    Lead
  4.    Zinc
 Discuss Question
Answer: Option D. -> Zinc
Question 2528. Which one of the following metals is used to galvanise iron ?
  1.    Lead
  2.    Copper
  3.    Mercury
  4.    Zinc
 Discuss Question
Answer: Option D. -> Zinc
Question 2529. Galvanization is the :
  1.    Deposition of tin on iron
  2.    Deposition of zinc on iron
  3.    Deposition of aluminium on iron
  4.    Deposition of copper on iron
 Discuss Question
Answer: Option B. -> Deposition of zinc on iron
Question 2530. A non-electronic conductor is
  1.    None of these
  2.    Copper Sulphate
  3.    Iron
  4.    Gas Carbon
 Discuss Question
Answer: Option A. -> None of these

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