Q29 / 160 · TS EAMCET 2018 (05 May Shift 1) · Chemistry

What is the chemical formula of hypophosphorus acid?

A
$\mathrm{H}_3 \mathrm{PO}_3$
Correct answer
B
$\mathrm{H}_3 \mathrm{PO}_2$
C
$\mathrm{H}_3 \mathrm{PO}_4$
D
$\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$

Solution

$\left(\mathrm{H}_3 \mathrm{PO}_2\right)$ Hypophosphorus acid.

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

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