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320mg of a sample of magnessium having a...

320mg of a sample of magnessium having a coating of its oxide required 20mL of 0.1M hydrochloric acid for the complete neutralisation of the latter. The composition of the sample is:

A

87% Mg and 12.5%MgO

B

12.5% Mg and 87.5 %MgO

C

80% Mg and 20%MgO

D

20% Mg and 80%MgO

Text Solution

Verified by Experts

The correct Answer is:
C
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