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Chemistry-(general)

NEET Chemistry (general) MCQ Question

Type: MCQ-numerical-Hard-Class 11

Calculate the percentage of phosphorus in an organic compound if 0.5 g of the compound yields 0.35 g of Mg2P2O7 upon complete combustion.

A

12.76%

B

10.88%

C

14.04%

D

8.95%

Correct Answer

Option A

Detailed Explanation

Using the formula for phosphorus percentage: (mass of phosphorus in Mg2P2O7 / mass of organic compound) x 100 = (0.222 * 0.35 / 0.5) x 100 = 12.76%.

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