JEE Main 2026 — p Block Elements (Group 13 & 14) Question with Solution

Statement I: Checking amphoteric nature of oxide pairs:
$[Si{O}_2,C{O}_2]$: Both acidic (non-metal oxides)
$[SnO,Sn{O}_2]$: Both amphoteric
$[PbO,Pb{O}_2]$: $PbO$ is amphoteric but $Pb{O}_2$ is predominantly acidic/oxidizing
$[GeO,Ge{O}_2]$: Both amphoteric (Ge is metalloid)
2 pairs have both oxides amphoteric. Statement I is true.
Statement II: $B{F}_3$ has B with 6 valence electrons (electron deficient), acts as Lewis acid, forms $B{F}_3\cdot N{H}_3$ adduct, has $s{p}^2$ hybridization giving trigonal planar geometry. Statement II is true.