JEE Main · 2026 · 02 Apr 2026 · Shift 2 · Classification of Elements and Periodicity

The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is:

Answer: (C)

Solution

The oxides divide as basic for the strongly electropositive metals

Na X_{2} O

and

K X_{2} O

, acidic for the highest oxide of chlorine

Cl X_{2} O X_{7}

, amphoteric for

Al X_{2} O X_{3}

and

As X_{2} O X_{3}

, and neutral for

N X_{2} O

NO

and

CO

. A set covering all four categories needs one oxide of each type, and this is satisfied only by

K X_{2} O

(basic),

Cl X_{2} O X_{7}

(acidic),

As X_{2} O X_{3}

(amphoteric) and

NO

(neutral). The set containing all four kinds of oxides is

K X_{2} O

Cl X_{2} O X_{7}

As X_{2} O X_{3}

and

NO

JEE Main · 2026 · 02 Apr 2026 · Shift 2 · Single correct option