Given below are two statements : Statement-I : Element ' X ' and \({ }^{\prime} \mathrm{Y}\) ' are the most and least electronegative elements, respectively among \(\mathrm{N}, \mathrm{As}, \mathrm{Sb}\) and P . The nature of the oxides \(\mathrm{X}_{2} \mathrm{O}_{3}\) and \(\mathrm{Y}_{2} \mathrm{O}_{3}\) is acidic and amphoteric, respectively. Statement-II : \(\mathrm{BCl}_{3}\) is covalent in nature and gets hydrolysed in water. It produces \(\left[\mathrm{B}(\mathrm{OH})_{4}\right]^{-}\)and \(\left[\mathrm{B}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\) in aqueous medium. In the light of the above statements, choose the correct answer from the options given below :

(B) Statement-I is true but Statement-II is false.

(A) Both Statement-I and Statement-II are true.

(C) Both Statement-I and Statement-II are false.

(D) Statement-I is false but Statement-II is true.

JEE Main · 2026 · 22 Jan 2026 · Shift 2 · p-Block Elements

Given below are two statements :

Statement-I : Element ' X ' and

^{'} Y

' are the most and least electronegative elements, respectively among

N, As, Sb

and P . The nature of the oxides

X_{2} O_{3}

and

Y_{2} O_{3}

is acidic and amphoteric, respectively.

Statement-II :

BCl_{3}

is covalent in nature and gets hydrolysed in water. It produces

[B (OH)_{4}]^{-}

and

[B (H_{2} O)_{6}]^{3 +}

in aqueous medium.

In the light of the above statements, choose the correct answer from the options given below :

Answer: (B)

Across the nitrogen family the electronegativity falls on moving down the group, so among

N, P, As, Sb

nitrogen is the most electronegative and antimony the least. The oxide

N_{2} O_{3}

is purely acidic while

S b_{2} O_{3}

is amphoteric, which makes Statement-I correct. For Statement-II,

BC l_{3}

is indeed covalent and is readily hydrolysed, but it gives boric acid and hydrogen chloride,

BC l_{3} + 3 H_{2} O \to B (OH)_{3} + 3HCl

, and not

[B (OH)_{4}]^{-}

together with

[B (H_{2} O)_{6}]^{3 +}

, so Statement-II is false. Statement-I is true but Statement-II is false.

JEE Main · 2026 · 22 Jan 2026 · Shift 2 · Single correct option