Question

Given below are two statements.
Statement I : The chlorides of Be and Al have Cl-bridged structure. Both are soluble in organic solvents and act as Lewis bases.
Statement II : Hydroxides of Be and Al dissolve in excess alkali to give beryllate and aluminate ions.
In the light of the above statements, choose the correct answer from the options given below.

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is true but Statement II is false
• D. Statement I is false but Statement II is true

Answer 1

Answer: (D)

Statement I is false but Statement II is true

Answer 2

Chlorides of Be and Al are
$BeCl_2$ and $AlCl_3$ have electron deficiency at central atom and behave as the Lewis acids.
$BeCl_2 + H_2O → [Be(OH)_4]^{2-}Beryllate \;ion$
$AlCl_3 + H_2O → [Al(OH)_4]- aluminate \;ion$

The correct answer is (D): Statement I is false but Statement II is true