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Home
Class 11
CHEMISTRY
The number of Faradays (F) required to p...

The number of Faradays (F) required to produce 20 g of calcium from molten `CaCl_(2)` (Atomic mass of Ca = 40 g `mol^(-1)`) is

A

1

B

2

C

3

D

4

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Text Solution

Verified by Experts

The correct Answer is:
A
`Ca_((aq))^(2+)+underset(underset(1F)(2F))(2e^(-)) rarr underset(underset(20g)("1 mole =40 g"))(Ca_((s)))`
Thus, one Faraday is required to produce 20 g of calcium from molten `CaCl_(2)`.
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The number of Faradays(F) required to produce 20g of calcuim from molten CaCl_2 (Atomic massof Ca=40 gmol^-1 ) is:

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Knowledge Check

  • The number of Faraday.s (F) required to produce 20 g of calcium from CaCl_(2) (Atomic mass of Ca= 40 g "mol"^(-1) is:

    A
    2
    B
    3
    C
    4
    D
    1

  • The number of Faraday.s (F) required to produce 20 g of calcium from CaCl_(2) (Atomic mass of Ca= 40 g "mol"^(-1) is:

    A
    2
    B
    3
    C
    4
    D
    1

  • Number of Faraday's required to generate one gram atom of calcium from molten CaCl-2 is

    A
    1
    B
    2
    C
    3
    D
    4

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    How many coulombs are required to produce 50.0 g of aluminium from molten Al_(2)O_(3) ?

    How many coulombs are required to produce 100 grams of calcium from molten CaCl_(2) ? (at . Weights of Ca=40)

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