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Question

The value of n in the molecular formula BenAl2Si6O18 is

A
3
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B
6
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C
4
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D
1
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Solution

The correct option is C 4
While balancing the charge of the atoms, we get
2n+6+24-36=0
n=3
The correct molecular formula is Be3Al2Si6O18. It is commonly known as beryl.

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