Question

Which of the following is anhydride of perchloric acid?

• A. $ \text{C}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{7}}} $
• B. $ \text{C}{{\text{l}}_{\text{2}}}{{\text{O}}_{5}} $
• C. $ \text{C}{{\text{l}}_{\text{2}}}{{\text{O}}_{3}} $
• D. $ HClO $

Answer 1

Answer: (A)

Chlorine heptachloride $ (C{{l}_{2}}{{O}_{7}}) $ is the anhydride of perchloric acid.
$ 2HCl{{O}_{4}}\xrightarrow{\Delta }C{{l}_{2}}{{O}_{7}}+{{H}_{2}}O $