The P Block Elements - Result Question 54
####55. The acid which has a peroxy linkage is [1994]
(a) Sulphurous acid
(b) Pyrosulphuric acid
(c) Dithionic acid
(d) Caro’s acid
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Solution:
- (d) Caro’s acid is $H_2 SO_5$ which contains one $S-O-O-H$ peroxy linkage. It is also known as permonosulphuric acid.
O=S(=O)(O)OO
