Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
$\mathrm{Cl}_{2} \mathrm{O}_{7}$ is the anhydride of
Chemistryp Block Elements (Group 15, 16, 17 & 18)WBJEEWBJEE 2018
Options:
  • A $\mathrm{HOCl}$
  • B $\mathrm{HClO}_{2}$
  • C $\mathrm{HClO}_{3}$
  • D $\mathrm{HClO}_{4}$
Solution:
2261 Upvotes Verified Answer
The correct answer is: $\mathrm{HClO}_{4}$
$\mathrm{Cl}_{2} \mathrm{O}_{7}$ is the anhydride of $\mathrm{HClO}_{4}$. It reacts with water slowly to give perchloric acid.
$\mathrm{Cl}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \underset{\text { Perchloric acid }}{2 \mathrm{HClO}_{4}}$
Its structure is as follows:


It is less reactive than other oxides of chlorine and does not react with $P, S,$ coal or paper at room temperature.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.