Q74 / 270 · NDA 2012 (Phase 2) · General Ability

Three elements $\mathrm{Na}, \mathrm{S}$ and O combine to form a compound $\mathrm{Na}_2 \mathrm{SO}_3$. What is the valency of S in this compound?

A
$2+$
Correct answer
B
$4+$
C
$6+$
D
$8+$

Solution

The correct answer is option B.

Hence, the correct answer is option: 'B'.

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