Acids, Bases and Salts — Chemistry STD 10 — Question
ICSE BoardEnglish MediumSTD 10ChemistryAcids, Bases and Salts1 Mark
MCQ
An acid which is not a hydracid is :
A
$H _2 S$
✓
$H _2 SO _3$
C
$HBr$
D
$HCl$
✓
Answer
Correct option: B.
$H _2 SO _3$
(b) $H _2 SO _3$ Explanation : Hydracids are acids that contain only hydrogen and one other non-metallic element. Sulphurous acid $\left( H _2 SO _3\right)$ contains hydrogen and two non-metallic elements (sulphur and oxygen), making it a non-hydracid.
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