1.

If 0.1 g of an oranic compound containing phosphorus produces 0.222g of `Mg_(2)P_(2)O_(7)` the percentage of phosphorus present in the compound isA. 31B. 0.2C. 66D. 62

Answer» Correct Answer - D
The precentage of P present in the organic compounds is given by
Percentage of P
`=(62)/(222)xx("weight of" Mg_(2)P_(2)O_(7))/("weight of organic compound")xx100`
`=(62)/(222)xx(0.222)/(0.1)xx100=62%`


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