AIPMT PRELIMS2007Chemistry-Electrochemistry
AIPMT PRELIMS 2007 Chemistry Electrolysis MCQ Question
Type: MCQ-numerical-Medium-Class 12
A steady current of 1.5 amp flows through a copper voltameter for 10 minutes. If the electrochemical equivalent of copper is 30 × 10⁻⁵ g coulomb⁻¹, the mass of copper deposited on the electrode will be
A
0.50 g
B
0.67 g
C
0.27 g
D
0.40 g
Correct Answer
Option B
Detailed Explanation
The mass of copper deposited is given by m = ZIt, where Z is the electrochemical equivalent, I is the current, and t is the time in seconds. m = 30 × 10⁻⁵ × 1.5 × 600 = 0.27 g.
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