61. Limiting molar conductivity is at:
A. High concentration
B. Infinite dilution
C. Zero temperature
D. High pressure
Answer: B
62. Kohlrausch’s law applies to:
A. Strong electrolytes
B. Weak electrolytes
C. Both
D. None
Answer: C
63. Transport number is:
A. Current fraction carried by ion
B. Voltage
C. Resistance
D. Pressure
Answer: A
64. Sum of transport numbers equals:
A. 0
B. 1
C. 2
D. 10
Answer: B
65. Electrolysis of water produces:
A. H₂ and O₂
B. CO₂
C. N₂
D. CH₄
Answer: A
66. At cathode during electrolysis:
A. Oxidation
B. Reduction
C. Neutralization
D. Combustion
Answer: B
67. At anode during electrolysis:
A. Reduction
B. Oxidation
C. Neutralization
D. Precipitation
Answer: B
68. Electrolysis of molten NaCl gives:
A. Na and Cl₂
B. NaOH
C. HCl
D. Na₂CO₃
Answer: A
69. Faraday’s first law relates:
A. Mass with charge
B. Voltage with current
C. Pressure with volume
D. Heat with energy
Answer: A
70. Faraday’s second law relates:
A. Equivalent weights
B. Volume
C. Temperature
D. Pressure
Answer: A