Home
Class 12
CHEMISTRY
What current is to be passed for 0.25 se...

What current is to be passed for 0.25 sec for deposition of certain weight of metal which is equal to its electrochemical equivalent ?

A

4A

B

100A

C

200A

D

2A

Text Solution

Verified by Experts

The correct Answer is:
A
Electrochemical equivalent is the weight deposited by 1 coulomb
`Q=1xxt "or" 1=1xx0.25` or 1=4A.
Promotional Banner

Similar Questions

Explore conceptually related problems

A current of 9.65A flowing for 10 mi n deposits 3.0g of the metal which is monovalent. The atomic mass of the metal is

A current of 0.65A flowing for 10 minutes, deposit 2.0g of a metal. The equivalent weight of the metal is

STATEMENT 1 : one coulomb of electric charge deposits the weight that is equal to electrochemical equivalent of substance and STATEMENT 2 One faraday deposits one mole of substance

A current of 9.95 amp following for 10 minutes, deposits 3 gm of a metal. Equivalent weight of the metal is:

When same quantity of electricity is passed for half an hour, the amount of Cu and Cr deposited are respectively 0.375 g and 0.30 g. Ratio of electrochemical equivalent of Cu and Cr is

A metal is know to form fluoride MF_(2) . When 10A of electricity is passed through a molten sat for 330sec, 1.95g of metal is deposited. Find the atomic weight of M. what will be the quantity electricity required to deposit the same mass of Cu form CuSO_(4) ?

A current of 9.65A flowing for 10 minutes deposits 3.0g of the metal which is monovalent. The atomic mass of the metal is

In a Cu - voltmeter, mass deposited in 30 s is m gm. If the time - current graph is shown in the following figure What is the electrochemical equivalent of Cu?

An electroplating unit plates 3.0 g of silver on a brass plate in 3.0 minutes. Find the current used by the unit. The electrochemical equivalent of silver is 1.12 xx 10^(-6) kg C^(-1) .

When a current strength of 965 amp can deposit 0.9g of At metal in 20 sec. What is the efficiency of electrolysis ?