p-Block Elements (Group 13 & 14)

JEE Main 2024 (Online) 30th January Morning ShiftMCQEasy📈 Topic in 32% papers+4−1

Ques. 1JEE Main 2024, 30 January (Morning Shift)

Aluminium chloride in acidified aqueous solution forms an ion having geometry

Square planar
Octahedral
Trigonal bipyramidal
Tetrahedral

Answer

(2) Octahedral

Solution

AlCl3 + 6H2O [Al(H2O)6]3+ + 3Cl-

∵ Al3+ uses its vacant 3s, 3p and 3d orbitals ⇒ sp3d2, coordination number 6

(acid suppresses hydrolysis, so the ion stays as [Al(H2O)6]3+)

∴ Geometry of [Al(H2O)6]3+ = octahedral

Answer: (2)

Keep practising — p-Block Elements (Group 13 & 14)

Ques. 2JEE Main 2024, 29 January (Morning Shift)

Given below are two statements : In the light of the above statements, choose the most appropriate from the options given below :

Statement I is false but Statement II is true
Both Statement I and Statement II are true
Both Statement I and Statement II are false
Statement I is true but Statement II is false

Ques. 3JEE Main 2024, 27 January (Morning Shift)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below :

Both (A) and (R) are correct but (R) is not the correct explanation of (A)
Both (A) and (R) are correct and (R) is the correct explanation of (A)
(A) is true but (R) is false
(A) is false but (R) is true

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