Question

Which one is the anhydride of $HClO_4$?

• A. $Cl_2O$
• B. $ClO_2$
• C. $Cl_2O_6$
• D. $Cl_2O_7$

Answer 1

Answer: (D)

$Cl_2O_7$

Answer 2

${2HClO_4 \to H_2O + CI_2O_7}$

$CI_2O_7$ is an anhydride of HClO4. An anhydride is the chemical compound that is formed from another compound by the removal of water molecules. Anhydride means without water.

So, the correct answer is (D): Cl2O7