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Chemical Formulae

If the valenc...

Question

If the valencies of aluminium and hydroxide ion are $+ 3$ and $- 1$ respectively, what is the correct chemical formula for aluminium hydroxide?

A

A l O_{3} H_{3}

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B

(A l)_{3} O H

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C

A l O H_{3}

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D

A l (O H)_{3}

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Solution

The correct option is C $A l (O H)_{3}$

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