The nature of oxides $\mathrm{V}_{2} \mathrm{O}_{3}$ and CrO is indexed as ' X ' and ' Y ' type respectively. The correct set of $X$ and $Y$ is:

(B) $X=$ basic $\mathrm{Y}=$ basic

(A) $X=$ acidic $\mathrm{Y}=$ acidic

(C) $X=$ basic $\mathrm{Y}=$ amphoteric

(D) $X=$ amphoteric $\mathrm{Y}=$ basic

JEE Main · 2021 · 27 Aug 2021 · Shift 1 · d and f Block Elements

The nature of oxides

V_{2} O_{3}

and CrO is indexed as ' X ' and ' Y ' type respectively. The correct set of

X

and

Y

is:

Answer: (B)

V_{2} O_{3}

is a lower oxide of vanadium in the

+ 3

state and, like the still lower

VO

, it is basic; amphoteric character appears only from the higher

V O_{2}

onward.

CrO

has chromium in its lowest common state,

+ 2

, and is likewise basic. Both

V_{2} O_{3}

and

CrO

are basic oxides.

JEE Main · 2021 · 27 Aug 2021 · Shift 1 · Single correct option