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JIPMER 2004

Exam: JIPMER
Year: 2004
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JIPMER 2004 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which of the following acids is monobasic?

Which of the following acids is monobasic?

Options

A $\mathrm{H}_3 \mathrm{PO}_3$
B $\mathrm{H}_3 \mathrm{PO}_2$
C $\mathrm{H}_2 \mathrm{SO}_3$
D $\mathrm{H}_3 \mathrm{PO}_4$

Correct answer

B. $\mathrm{H}_3 \mathrm{PO}_2$

Step-by-step solution

\mathrm{H}_3 \mathrm{PO}_2

(hypophosphorus acid) is a monobasic acid. It gives only one type of salt e.g.,

\mathrm{NaH}_2 \mathrm{PO}_2

.

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