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Chemical Properties of Boron Family

AlF 3 is solu...

Question

$A l F_{3}$ is soluble in $H F$ only in the presence of $K F$ . It is due to the formation of:

A

K_{3} [A l F_{3} H_{3}]

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B

K_{3} [A l F_{6}]

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C

A l H_{3}

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D

K [A l F_{3} H]

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Solution

The correct option is B $K_{3} [A l F_{6}]$
Can you recall cryolite or something very similar:
$3 K F + A l F + 3 ⟶ K_{3} [A l F_{6}]$

This makes $A l F_{3}$ soluble in $H F$ .

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only in the presence of

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Q. Select correct answer:

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. The compound contains the species:
(a)

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