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A steady current of 1.5 amp flows through a copper voltmeter for 10 minutes. If the electrochemical equivalent of copper is 30 x 10⁻⁵ g coulomb⁻¹, the mass of copper deposited on the electrode will be
Options
(a) 0.50 g
(b) 0.67 g
(c) 0.27 g
(d) 0.40 g
Correct Answer:
0.27 g
Explanation:
We have, m = ZIt where, Z is thr electrochemical equivalent of copper.
m = 30 x 10⁻⁵ x 1.5 x 10 x 60
= 0.27 gm.
Related Questions: - Sodium and copper have work function 2.3 eV and 4.5 eV respectively
- The optical path of a monochromatic light is same if it goes through 4.0 cm
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Sodium and copper have work function 2.3 eV and 4.5 eV respectively
- The optical path of a monochromatic light is same if it goes through 4.0 cm
- The identical cells connected in series are needed to heat a wire of length one meter
- An explosion blows a rock into three parts. Two parts go off at right angles to each other
- The electric field in a certain region is acting radially outward and is given by E=Ar.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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