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Q.

The number of hydrogen atoms present in 25.6 g of sucrose C12H22O11which has a molar mass of 342.3 g is

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a

22×1023

b

9.91×1023

c

11×1023

d

44×1023 H atoms

answer is B.

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Detailed Solution

No. of moles of sucrose =25.6342.3=0.0751 mole of sucrose contains 22×6.023×1023 of H-atom 0.075  moles of sucrose contain=9.91×1023 of H-atoms.
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