Q. Which of the following ions does not liberate hydrogen gas on reaction with dilute acids ?

1836 186 JEE MainJEE Main 2017The d-and f-Block Elements Report Error

A

$T i^{2 +}$

14%

B

$V^{2 +}$

24%

C

$C r^{2 +}$

16%

D

$M n^{2 +}$

47%

Solution:

$M n^{2 +}$