NEET 2022 Chemistry Alkali Metals MCQ Question with Solution

Identify the INCORRECT statement from the following.

A

Ionisation enthalpy of alkali metals decreases from top to bottom in the group.

B

Lithium is the strongest reducing agent among the alkali metals.

C

Alkali metals react with water to form their hydroxides.

D

The oxidation number of K in KO₂ is +4.

Option D

The oxidation number of K in KO₂ is +1, not +4. KO₂ is a superoxide, where the oxidation state of oxygen i $s^{-1}$ /2.

Found an issue with this question?

NEET 2022 Chemistry Alkali Metals MCQ Question