Question

Caros acid is

• A. $H_2{S}_2{O}_3$
• B. $H_{2}S{O}_5$
• C. $H_2{S}_2{O}_8$
• D. $H_2{S}_2{O}_7$

Answer 1

Answer: (B)

${\text{H}}_{\text{2}}\text{S}{\text{O}}_{\text{5}}$ (peroxomono sulphuric acid) is known as Caros acid.