The number of $\mathrm{Cl}=\mathrm{O}$ bonds in perchloric acid is," \_\_\_\_".

JEE Main · 2020 · 06 Sep 2020 · Shift 1 · p-Block Elements

The number of

Cl = O

bonds in perchloric acid is," ____".

Answer: 3

Solution

Perchloric acid is

HClO X_{4}

: the central chlorine is bonded to one

- OH

group and to three further oxygen atoms. Those three chlorine-oxygen links are double bonds,

Cl = O

, while the fourth oxygen carries the acidic hydrogen through a single bond. Hence there are three such

Cl = O

bonds.

JEE Main · 2020 · 06 Sep 2020 · Shift 1 · Integer answer

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