Question

Acidified solution of chromic acid on treatment with hydrogen peroxide yields.

• A. $CrO_{3} + H_{2}O + O_{2}$
• B. $Cr_{2}O_{3} + H_{2}O + O_{2}$
• C. $CrO_{5} + H_{2}O$
• D. $H_{2}Cr_{2}O_{7} + H_{2}O + O_{2}$

Answer 1

Answer: (C)

$CrO_{5} + H_{2}O$

Answer 2

$K_{2}Cr_{2}O_{7} + H_{2}SO_{4} + 4H_{2}O_{2} \rightarrow K_{2}SO_{4} + 2CrO_{5} + 5H_{2}O$