Consider the oxides of group 14 elements $\mathrm{SiO}_{2}, \mathrm{GeO}_{2}, \mathrm{SnO}_{2}, \mathrm{PbO}_{2}, \mathrm{CO}$ and GeO . The amphoteric oxides are

(C) $\mathrm{SnO}_{2}, \mathrm{PbO}_{2}$

(A) $\mathrm{GeO}, \mathrm{GeO}_{2}$

(B) $\mathrm{SiO}_{2}, \mathrm{GeO}_{2}$

(D) $\mathrm{SnO}_{2}, \mathrm{CO}$

JEE Main · 2024 · 31 Jan 2024 · Shift 1 · p-Block Elements

Consider the oxides of group 14 elements

SiO_{2}, GeO_{2}, SnO_{2}, PbO_{2}, CO

and GeO . The amphoteric oxides are

(A) $GeO, GeO_{2}$
(B) $SiO_{2}, GeO_{2}$
(C) $SnO_{2}, PbO_{2}$ ✓ Correct
(D) $SnO_{2}, CO$

Answer: (C)

Solution

Among the group 14 oxides listed, tin and lead dioxides (

Sn O_{2}

and

Pb O_{2}

) are amphoteric, dissolving in both acids and bases.

Si O_{2}

is acidic, and CO is essentially neutral.

JEE Main · 2024 · 31 Jan 2024 · Shift 1 · Single correct option

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