JEE Main 2026 — Jan 22, Shift 2 — Chemistry solution

JEE Main2026Jan 22, Shift 2Chemistry

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 : $B C l_{3}$ is covalent in nature and gets hydrolysed in water. It produces $[B (O H)_{4}]^{-}$ 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 :

A
Both Statement-I and Statement-II are true.
B
Statement-I is true but Statement-II is false.
C
Both Statement-I and Statement-II are false.
D
Statement-I is false but Statement-II is true.

Solution

Electronegativity order in group 15: $N > P > A s > S b$ . So $X = N$ (most EN), $Y = S b$ (least EN).

$N_{2} O_{3}$ is acidic and $S b_{2} O_{3}$ is amphoteric — Statement-I is correct.

$B C l_{3}$ is covalent and hydrolyses, but the product is boric acid $B (O H)_{3}$ along with $H C l$ — not $[B (O H)_{4}]^{-}$ or $[B (H_{2} O)_{6}]^{3 +}$ . Statement-II is incorrect.

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