Given below are two statements : Statement I : Elements ‘X’ and ‘Y’ are the most and least electronegative elements, respectively among N, As, Sb and P. The nature of the oxides

Question

Given below are two statements :

Statement I : Elements ‘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 : [2026]

Smart Achievers · Accepted Answer

(3)

$Electronegativity order : N > P > As > Sb$

$↑$ $↑$

Most electronegative Least electronegative

$X = N X_{2} O_{3} = N_{2} O_{3} (Acidic)$

$Y = Sb Y_{2} O_{3} = {Sb}_{2} O_{3} (Amphoteric)$

$Statement-I is true$

${BCl}_{3} + 3 H_{2} O \to B {(OH)}_{3} + 3 HCl$

$Statement-II is false$

Solution

1 Both Statement I and Statement II are true

2 Statement I is false but Statement II is true

3 Statement I is true but Statement II is false

4 Both Statement I and Statement II are false

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