SATHEE: P-Block Elements Ques 524

P-Block Elements Ques 524

Question: Anhydrous aluminium chloride $(A l_{2} C l_{6})$ is covalent compound and soluble in water giving:

Options:

A) $A l^{3 +}$ and $C l^{-}$ ions

B) ${[A l {(H_{2} O)}_{6}]}^{3 +}$ and $C l^{-}$ ions

C) ${[A l C l_{2} {(H_{2} O)}_{4}]}^{3 +}$ and ${[A l C l_{4} {(H_{2} O)}_{2}]}^{-}$ ions

D) none of the above

Show Answer

Answer:

Correct Answer: C

Solution:

$A l C l_{3} .6 H_{2} O \overset{d i s s o c i a t i o n}{\to}$ ${[A l C l_{2} {(H_{2} O)}_{4}]}^{+} + {[A l C l_{4} {(H_{2} O)}_{2}]}^{-}$

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