Which of the following is a dibasic acid?

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Question

(B) dibasic acid is an acid that contains two replaceable hydrogen atoms per molecule. $1$. Hydrochloric acid $(HCl)$ is monobasic as it provides one

Vedclass · Accepted Answer

Sulphuric acid

Vedclass · Answer

(B) dibasic acid is an acid that contains two replaceable hydrogen atoms per molecule. $1$. Hydrochloric acid $(HCl)$ is monobasic as it provides one $H^+$ ion. $2$. Sulphuric acid $(H_2SO_4)$ is dibasic as it provides two $H^+$ ions per molecule upon dissociation $(H_2SO_4 \rightarrow 2H^+ + SO_4^{2-})$. $3$. Nitric acid $(HNO_3)$ is monobasic as it provides one $H^+$ ion. $4$. Hydrobromic acid $(HBr)$ is monobasic as it provides one $H^+$ ion. Therefore,the correct answer is $H_2SO_4$.

$X$	$Y$
$1.$ Dehydrating agent	$p.$ Sulphur dioxide gas
$2.$ In preparation of firecrackers	$q.$ Concentrated sulphuric acid
$3.$ Weak bleaching agent	$r.$ Dihydrogen gas
$4.$ Lightest gas	$s.$ Sulphur

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Make correct pairs from the below-mentioned $X$ and $Y$:
$X$ $Y$
$1.$ Dehydrating agent $p.$ Sulphur dioxide gas
$2.$ In preparation of firecrackers $q.$ Concentrated sulphuric acid
$3.$ Weak bleaching agent $r.$ Dihydrogen gas
$4.$ Lightest gas $s.$ Sulphur

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