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(A): Hydrogen gas always evolved only at...

(A): Hydrogen gas always evolved only at cathode during electrolysis
(R) : `H^(+)` ions undergo reduction by gaining electrons
The correct answer is

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-ELECTROCHEMISTRY -LEVEL-I ( EXERCISE-I)
  1. At anode in the electrolysis of fuscd sodium chloride

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  2. In electrolysis of NaCl when Pt electode is taken then H2 is liberated...

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  3. (A): Hydrogen gas always evolved only at cathode during electrolysis ...

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  4. Which of the following ions is discharged at the cathode when an aqueo...

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  5. During electrolysis of fused NaOH

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  6. Aqueous solution of AgNO3 is electrolysed using inert electrodes. At t...

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  7. At cathode, the electrolysis of aqueous Na2SO4 gives

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  8. An aqueous solution containing one mole per litre of each Cu(NO3)2 , A...

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  9. The electrolysis of an aqueous solution of KNO3 between platinum elect...

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  10. According to Faraday's first Law of electrolysis mass of substance lib...

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  11. When the same charge is passed through the solutions of different elec...

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  12. According to 2nd law of Faraday's electrolysis the correct one is i...

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  13. One Faraday is equal to

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  14. One Faraday of electricity will liberate 1 gram atom of the metal from...

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  15. For the discharge of equal masses of the following ions, the number of...

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  16. The correct match is

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  17. Copper can be deposited from acidified copper sulphate and alkaline cu...

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  18. The correct match is

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  19. The minimum conductance in fused state is shown by

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  20. The ionic conductance of following cations in a given conc. is in the ...

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