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MCQs

Total Questions : 204 | Page 5 of 21 pages
Question 41. Valuable metals are attached to the anode, which is known as
  1.    ore
  2.    sludge
  3.    cryolite
  4.    bauxite
 Discuss Question
Answer: Option B. -> sludge
Answer: (b).sludge
Question 42. The particles which move towards cathode are called
  1.    anions
  2.    cations
  3.    photons
  4.    positrons
 Discuss Question
Answer: Option B. -> cations
Answer: (b).cations
Question 43. The Greek words 'way up ' and 'way down' were given to
  1.    anode and cathode
  2.    electrolyte
  3.    solution
  4.    electrode
 Discuss Question
Answer: Option A. -> anode and cathode
Answer: (a).anode and cathode
Question 44. The consumption of a typical smelting plant of aluminum is as much as electricity consumed by
  1.    nuclear plant
  2.    small town
  3.    electrolytic cell
  4.    steel and iron industry
 Discuss Question
Answer: Option B. -> small town
Answer: (b).small town
Question 45. Aluminum oxide has the melting point of
  1.    2140 °C
  2.    2040 °C
  3.    2000 °C
  4.    4020 °C
 Discuss Question
Answer: Option B. -> 2040 °C
Answer: (b).2040 °C
Question 46. The mass of a substance which has been produced at an electrode is directly proportional to the quantity of electricity passed, is
  1.    Faraday's first law
  2.    Faraday's second law
  3.    Faraday's third law
  4.    Newton's third law
 Discuss Question
Answer: Option A. -> Faraday's first law
Answer: (a).Faraday's first law
Question 47. In electrolysis of silver nitrate solution, silver is deposited at
  1.    anode
  2.    cathode
  3.    inert electrode
  4.    charged electrode
 Discuss Question
Answer: Option B. -> cathode
Answer: (b).cathode
Question 48. 1 faraday is equal to
  1.    96500 °C
  2.    12700 °C
  3.    987690 °C
  4.    96000 °C
 Discuss Question
Answer: Option A. -> 96500 °C
Answer: (a).96500 °C
Question 49. Faraday has proposed two laws of
  1.    electrolysis
  2.    hydrolysis
  3.    electromagnetism
  4.    gravity
 Discuss Question
Answer: Option A. -> electrolysis
Answer: (a).electrolysis
Question 50. The number of specified particles in 1 mole is
  1.    Avogadro constant
  2.    formula mass
  3.    Leonardo's number
  4.    none of above
 Discuss Question
Answer: Option A. -> Avogadro constant
Answer: (a).Avogadro constant

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