Question

171 g of sucrose on hydrolysis gives ____________ mole(s) of glucose.

(Atomic wt: C = 12, H = 1, O = 16)

Options

• 0.5

• 1

• 1.5

• 2

Answer 1

171 g of sucrose on hydrolysis gives 0.5 mole(s) of glucose.

Explanation:

The molecular weight of sucrose C₁₂H₂₂O₁₁ is 12 × 12 + 22 × 1 + 11 × 16 = 342 g/mol

Thus, 171 g of sucrose corresponds to 0.5 mole.

1 mole of sucrose on hydrolysis gives 1 mole of glucose and 1 mole of fructose.

∴ 0.5 mole of sucrose on hydrolysis gives 0.5 mole of glucose.