Electrolysis Quiz 1

Question 1

For pure water the electrode potential for the reduction producing hydrogen is:

Accepted Answer

-0.41 V

Answer

-0.76 V

Answer

+0.82 V

Answer

1.7 V

Question 2

Arrange the following in accordance with increasing in standard electrode potential

Accepted Answer

$$Zn <  {{H}_{2}} <  C{{l}^{-}} <  S{{O}_{4}}^{2-}$$

Answer

$$Zn > {{H}_{2}} > C{{l}^{-}} > S{{O}_{4}}^{2-}$$

Answer

$$Zn <  C{{l}^{-}} <  {{H}_{2}} <  S{{O}_{4}}^{2-}$$

Answer

$$C{{l}^{-}} <  Zn <  {{H}_{2}} <  S{{O}_{4}}^{2-}$$

Question 3

In electrolysis the part which has to be coated act as:

Accepted Answer

Anode

Answer

Cathode

Answer

Battery

Answer

Solvent

Question 4

Which of the following combinations of electrolytes is not correct?

Accepted Answer

$$C{{H}_{3}}COOH,COOH-COOH,{{H}_{2}}C{{O}_{3}}$$

Answer

$$HCl,HN{{O}_{3}},{{H}_{2}}S{{O}_{4}}$$

Answer

$$NaOH,KOH,CsOH,N{{H}_{4}}OH$$

Answer

None of the above

Question 5

In case of sodium chloride:

Accepted Answer

Electrolysis can be carried out in molten form as well as in aqueous form.

Answer

Electrolysis can be carried out in solid form.

Answer

Electrolysis can be carried out in molten form only.

Answer

Electrolysis process is not taking place.