Given below are two statements :
Statement I: Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature.
Statement II: upon hydrolysis in acidified aqueous solution forms octahedral ion.
In the light of the above statements, choose the correct answer from the options given below :
Statement I: Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature.
Statement II: upon hydrolysis in acidified aqueous solution forms octahedral 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
- (D)Both statement I and statement II are true✓ Correct
Answer: (D)
Solution
Statement I: trivalent Group 13 halides such as and are covalent because of the high charge density of the small, highly charged metal centre. Being electron-deficient (only six electrons around the metal), they readily accept a lone pair from water and undergo hydrolysis, e.g. . True.
Statement II: in acidified aqueous solution, coordinates six water molecules through their oxygen lone pairs, using empty 3s, 3p and 3d orbitals ( hybridization) to give the octahedral complex . True.
Both statements are correct.
Statement II: in acidified aqueous solution, coordinates six water molecules through their oxygen lone pairs, using empty 3s, 3p and 3d orbitals ( hybridization) to give the octahedral complex . True.
Both statements are correct.
JEE Main · 2024 · 31 Jan 2024 · Shift 2 · Single correct option