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Question

A metal oxide contains 60 % of metal by mass. The equivalent weight of the metal is:

A
12 g
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B
40 g
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C
40 g
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D
24 g
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Solution

The correct option is A 12 g
Let the weight of metal oxide is 100 g.
Weight of oxygen = 40 g; weight of metal = 60 g
weight of metalweight of oxygen=equivalent weight of the metalequivalent weight of oxygen
6040=M8
On solving, M=12 g

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