Home
Class 12
PHYSICS
A steady current of 5 amps is maintained...

A steady current of 5 amps is maintained for 45 mins . During this time it deposits `4.572` gms of zinc at the cathode of a voltameter. E.C.E. of zinc is

A

`3.387xx10^(-4)gm//C`

B

`3.387xx10^(-4)C//gm`

C

`3.384xx10^(-3)gm//C`

D

`3.394xx10^(-3)C//gm`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Heating Effect of Current|2 Videos

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Chemical Effect Current|1 Videos

  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos

  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

Similar Questions

Explore conceptually related problems

If a steady current of 4 amp maintained for 40 minutes, deposits 4.5 gm of zinc at the cathode and then the electro chemical equivalent will be

A current of 5.00 A flowing for 30.00 min deposits 3.048 g of zinc at the cathode. Hence, equilvalent mass of zinc is:

A steady current of 10.0 A is maintained in a copper voltameter . Calculate the time required to deposit 2.5 g of copper . Relative atomic mass of copper = 63.5 g .

A 5A current in passed through a solution of zinc sulphate for 40 min . These amount of zinc deposited at the cathode is

A copper voltameter is connected in series with a coil of resistance 100Omega . A steady current flowing in the circuit for 10 minutes, gives a deposit of 0.1 g of copper in the voltameter. Calculate the heat generated in the resistance coil. (ECE of Cu 3.3xx10^(-7)kg//C )

Three electrolytic cells A, B and C containing solutions of zinc sulphate, silver nitrate and copper sulphate, respectively are connected in series. A steady current of 1.5 ampere was passed through them until 1.45 g of silver were deposited at the cathode of cell B. How long did the current flow? What mass of copper and what mass of zinc were deposited in the concerned cells? (Atomic masses of Ag = 108, Zn = 65.4, Cu = 63.5)

A copper voltameter is connected in series with a heater coil of resistance 0.1 Omega . A steady current flows in the circuit for twenty minutes and mass of 0.99 g of copper is deposited at the cathode. If electrochemical equivalent of copper is 0.00033 gm/C , then heat generated in the coil is