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Bell metal contains 80% copper . The mas...

Bell metal contains 80% copper . The mass of Bell metal which contain `1.5 xx 10^(20)` atoms of copper is (Cu = 64)

A

2mg

B

20mg

C

40mg

D

12.8mg

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -2
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