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Question

Calculate the ratio of the number of metal atoms to the total number of constituents in aluminium carbonate.

A
1 : 4
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B
7 : 6
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C
71 : 6
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D
1 : 7
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Solution

The correct option is B 1 : 7
The chemical formula of aluminium carbonate can be written as; Al2(CO3)3. Thus the ratio of metal atoms to the total number of constituents in aluminium carbonate is 2:14 = 1:7

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