Question

What is the n-factor / valency factor of $H_{2}C{O}_3$ ?

• A. 1
• B. 2
• C. Either a or b
• D. Neither a nor b

Answer 1

The correct option is C

Either a or b

In this case of $H_{2}C{O}_3$ valency factor changes depending upon the reaction as the number of $H^{+}$ ions replaced might vary depending on the extent of the reaction.

$H_{2}C{O}_3$ $\to$ $H^{+}$ + ${HC{O}_3}^{-}$ (n-factor =1)

$H_{2}C{O}_3$ $\to$ 2$H^{+}$ +${C{O}_3}^{2-}$ (n-factor = 2)