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Avogadro's Law & Gay Lussac's Law

The oxide of ...

Question

The oxide of an element possesses the molecular formula, $M O_{3}$ . If the equivalent mass of the metal is 9, the atomic mass of the metal will be:

A

27

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B

18

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C

9

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D

4.5

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Solution

The correct option is A 27
ANS; A
Oxidation state of metall = +3
Atomic mass of metal = 9
Equivalent mass of metal = $9 \times 3$ = 27

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