AIEEE 2003 | Electrochemistry Question 188 | Chemistry

When during electrolysis of a solution of AgNO₃, 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited on the cathode will be :

10.8 g

21.6 g

108 g

1.08 g

AIEEE 2003

MCQ (Single Correct Answer)

-1

For the redox reaction Zn(s) + Cu²⁺(0.1 M) $$\to$$ Zn²⁺(1M) + Cu(s) taking place in a cell, $$E_{cell}^o$$ is 1.10 volt. E_cell for the cell will be ($$2.303{{RT} \over F}$$ = 0.0591)

1.80 volt

1.07 volt

0.82 volt

2.14 volt

AIEEE 2003

MCQ (Single Correct Answer)

-1

Several blocks of magnesium are fixed to the bottom of a ship to :

make the ship lighter

prevent action of water and salt

prevent puncturing by under-sea rocks

keep away the sharks

AIEEE 2003

MCQ (Single Correct Answer)

-1

For a cell reaction involving a two-electron change, the standard e.m.f. of the cell is found to be 0.295 V at 25^oC. The equilibrium constant of the reaction at 25^oC will be

29.5 $$\times$$ 10^-2

1 $$\times$$ 10¹⁰

1 $$\times$$ 10^-10

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