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CBSE Class 12 Chemistry 2019 Outside Delhi Set 2 Solved Paper

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Question : 17
Total: 27
An element X with an atomic mass of 81u has density 10.2gcm−3. If the volume of unit cell is 2.7×10−23cm3, identify the type of cubic unit cell. ( Given : NA=6.022×1023mol−1 )
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