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Reactivity with Halogens and Hydrogen (Group 2)

The atomic we...

Question

The atomic weight of metal (M) is 27 and its equivalent weight is 9. The formula of its chloride will be :

A

M C l

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B

M C l_{2}

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C

M C l_{4}

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D

none

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Solution

The correct option is D none
Let the formula of the compound be $M C l_{x}$ .
The valency of the metal $x = \frac{A t o m i c w e i g h t}{E q u i v a l e n t l w e i g h t} = \frac{27}{9} = 3$ .
$∴$ The formula of its chloride is $M C l_{3}$ .

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