In which of the following ionic radii of chromium would be s... | CHEMISTRY - GENERAL PROPERTIES OF THE TRANSITION ELEMENTS (D-BLOCK) | SolveeIt | Solveeit

Today, August 18

Question

In which of the following ionic radii of chromium would be smallest.

A

$K_{2}CrO_{4}$

B

$CrO_{2}$

C

$CrCl_{3}$

D

$CrF_{2}$

Answer

$K_{2}CrO_{4}$

Explanation

Solution

Oxidation number of $Cr$ in options a, b, c and d are +6, + 4, + 3, + 3 respectively.

In given options (1) has high oxidation number therefore its radii will be low. Atomic radii decreases with increase in oxidation no.