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Question

50g of a metal when completely reacts with oxygen, mass of metal oxide becomes 75g. What is the equivalent mass of the metal oxide?

A
16
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B
24
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C
32
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D
40
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Solution

The correct option is A 16
Weight of metal given= 50g
Mass of metal oxide= 75gm
% of metal in metal oxide= 5075=66.66%
Equivalent weight= Weight of metalWeight of oxygen combined×8
=66.6633.33×8=16 .

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