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JEE Main 31-Jan-2024 Paper - Shift 2 — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEEJEE Main 31-Jan-2024 Paper - Shift 24 Marks
MCQ
Given below are two statements :
Statement I: Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature.
Statement II: $AlCl _3$ upon hydrolysis in acidified aqueous solution forms octahedral $\left[ Al \left( H _2 O \right)_6\right]^{3+}$ ion.
In the light of the above statements, choose the correct answer from the options given below : 
  • A
    Statement I is true but statement II is false
  • B
    Statement I is false but statement II is true
  • C
    Both statement I and statement II are falsE
  • ✓
    Both statement I and statement II are true
✓

Answer

Correct option: D.
Both statement I and statement II are true
(D)
In trivalent state most of the compounds being covalent are hydrolysed in water. Trichlorides on hydrolysis in water form tetrahedral $\left[ M ( OH )_4\right]^{-}$ species, the hybridisation state of element M is $sp ^3$.
In case of aluminium, acidified aqueous solution forms octahedral $\left[ Al \left( H _2 O \right)_6\right]^{3+}$ ion.

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