The density of mercury is 13.6×103kgm−3. The mass of 1cm3 of mercury is:
A
A is correct and R is the correct reason for A.
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B
A is correct but R is not the correct reason for A.
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C
A is incorrect but R is correct.
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D
Both A and R is incorrect.
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Solution
The correct option is BA is correct but R is not the correct reason for A. The density of mercury is 13.6×103kgm−3. We know 1cm = 10−2m and 1kg=103g. 13.6×103kgm−3 = 13.6×103×103×10−6gcm−3. So, 1cm3 contains 13.6g of mercury.