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Chemistry · p-Block (I) (Grp. 13, 14)

JEE Main 2026 — 5 April, Evening Shift — Question 57

Given below are two statements :

Statement-I : Aluminium upon reaction with NaOH forms [Al(OH)6]3−\left[\mathrm{Al}(\mathrm{OH})_{6}\right]^{3-} ion.

Statement-II : The geometry of ICl4−,ClO3−\mathrm{ICl}_{4}^{-}, \mathrm{ClO}_{3}^{-}and IBr2−\mathrm{IBr}_{2}^{-}is square planar, pyramidal and linear respectively.

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

  1. Option A:

    Both Statement-I and Statement-II are true.

  2. Option B:

    Both Statement-I and Statement-II are false.

  3. Option C:

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

  4. Option D:

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

    Correct

Answer: D

Step-by-step solution

Al+NaOH(\mathrm{Al}+\mathrm{NaOH}( excess )→Na[Al(OH)4]+H2( g)) \rightarrow \mathrm{Na}\left[\mathrm{Al}(\mathrm{OH})_{4}\right]+\mathrm{H}_{2}(\mathrm{~g})

Statement II :

ClO3Θ\mathrm{ClO}_{3}^{\Theta} is sp3\mathrm{sp}^{3} and pyramidal ICl4Θ\mathrm{ICl}_{4}^{\Theta} is sp3 d2\mathrm{sp}^{3} \mathrm{~d}^{2} and square planar IBr2Θ\mathrm{IBr}_{2}^{\Theta} is sp3 d\mathrm{sp}^{3} \mathrm{~d} and linear.

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
5 April, Evening Shift
Subject
Chemistry
Chapter
p-Block (I) (Grp. 13, 14)
Topic
Comparisons between the different compounds formed by Group 13 elements

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