Q.

Statement I: % of phosphorus =31 × m1 × 1001877 × m

Statement II: In the above formula, molar mass of  (NH4)3 PO412MoO3=1877 g, 31= atomic mass of phosphorous, m1 = obtained mass of phosphorous and m = Total mass of the organic compound taken.

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a

Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I.

b

Statement I is correct but Statement II is incorrect.

c

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I.

d

Both Statement I and Statement II are incorrect.

answer is A.

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Detailed Solution

Since, molar mass of (NH4 )3 PO412MoO3 is 1877 g, 31 = atomic mass of phosphorous, m1 = obtained mass of phosphorous and m = total mass of the organic compound taken, the % of P can be calculated as

% of P = 31 × m1 × 1001877 × m

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