1 : The cell constant of a conductivity cell
Options:
  1. changes according to concentration of electrolyte
  2. changes with temperature of electrolyte
  3. remain constant for a cell
  4. changes according to pH change

Answer: Option 3

Explanation:

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2 : Which among the following is a primary cell?
Options:
  1. dry cell
  2. mercury cell
  3. both of the above
  4. fuel cell

Answer: Option 3

Explanation:

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3 : Daniell cell is
Options:
  1. the chemical energy liberated during redox reaction is converted to electrical energy
  2. no energy is being converted during the process
  3. only chemical energy is present
  4. electrical energy is converted to chemical energy

Answer: Option 1

Explanation:

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4 : Flourine is best oxidising agent because it has
Options:
  1. highest reduction potential
  2. highest electron affinity
  3. highest oxidation potential
  4. none of these

Answer: Option 1

Explanation:

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5 : Amount of electricity that can deposit 108 gm of silver from silver nitrate solution is
Options:
  1. 1 ampere
  2. 1 coulomb
  3. 1 Faraday
  4. None of the above

Answer: Option 3

Explanation:

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6 : When 9.65 coulombs of electricity is passed through a solution of sliver nitrate (atomic weight of Ag = 107.87 taking as 108) the amount of silver deposited is
Options:
  1. 10.8 mg
  2. 5.4 mg
  3. 16.2 mg
  4. 21.2 mg

Answer: Option 1

Explanation:

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7 : The electrolytic conductance is a direct measure of
Options:
  1. resistance
  2. potential
  3. concentration
  4. dissociation

Answer: Option 4

Explanation:

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8 : When a solution of an electrolyte is heated the conductance of the solution
Options:
  1. increases because of the electrolyte conducts better
  2. decreases because of the increased heat
  3. decreases because of the dissociation of the electrolyte is suppressed
  4. increases because the electrolyte is dissociated more

Answer: Option 4

Explanation:

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9 : When lead storage battery is charged
Options:
  1. lead dioxide dissolves
  2. sulphuric acid is regenerated
  3. the lead electrode becomes coated with lead sulphate
  4. the amount of sulphuric acid decreases

Answer: Option 2

Explanation:

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10 : When lead storage battery is charged
Options:
  1. lead dioxide dissolves
  2. sulphuric acid is regenerated
  3. the lead electrode becomes coated with lead sulphate
  4. the amount of sulphuric acid decreases

Answer: Option 2

Explanation:

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