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Two elements 'A' and 'B' (atomic weights...

Two elements 'A' and 'B' (atomic weights 75 and 16 respectively) combine to give a compound having `75.8%` of 'A'. The compound has the formula (St. John's) 

A

`AB`

B

`A_(2)B`

C

`AB_(2)`

D

`A_(2)B_(3)`

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The correct Answer is:
D
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