Question

Study the given cell carefully and fill in the blanks by choosing an appropriate option.
In the given cell, hydrogen and oxygen are bubbled through porous $\underset{–}{\left(i\right)}$ electrodes into concentrated aqueous $\underset{–}{\left(ii\right)}$ solution. Catalysts like finely divided $\underset{–}{\left(iii\right)}$ or $\underset{–}{\left(iv\right)}$ metal are incorporated into the electrodes for increasing the rate of electrode reactions.

• A. (i)- Hydrogen, (ii)-Potassium hydroxide, (iii)- palladium, (iv)-platinum
• B. (i)- Oxygen, (ii)- Hydrogen chloride, (iii)- Manganese, (iv)- Iron
• C. (i)- Carbon, (ii)- sodium hydroxide, (iii)- Platinum, (iv)- palladium
• D. (i)- Graphite, (ii)- Sodium Chloride, (iii)- Nickel, (iv)- Platinum

Answer 1

The correct option is C (i)- Carbon, (ii)- sodium hydroxide, (iii)- Platinum, (iv)- palladium

ANS : C

In the given cell, hydrogen and oxygen are bubbled through porous carbon electrode into concentrated aqueous sodium hydroxide solution. Catalysts like finely divided platinum or palladium metal are incorporated into the electrodes for increasing the rate of electrode reaction.