Q.

0.0833 mole of carbohydrate of empirical formula CH2O contain, I g of hydrogen. The molecular formula of the carbohydrate is

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a

C5H10O5

b

C3H4O3

c

C12H22O11

d

C6H12O6

answer is D.

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Detailed Solution

∵ 0.0833 moles of carbohydrate have hydrogen = I g∴ 1 mole of carbohydrate has hydrogen =10.0833=12 g Given, empirical formula of carbohydrate CH2O has 2 g  of hydrogen, n=122=6∴ Molecular formula of carbohydrate is CH2On=CH2O×6=C6H12O6
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0.0833 mole of carbohydrate of empirical formula CH2O contain, I g of hydrogen. The molecular formula of the carbohydrate is