When one mole of lactose is hydrolysed, the hydrolysate contains

1. $1 \cdot 0$ mol Galactose $+1 \cdot 0$ mol Glucose
2. $1 \cdot 0$ mol Glucose $+2 \cdot 0$ mol Galactose
3. $1 \cdot 0$ mol Glucose $+1 \cdot 0$ mol Fructose
4. $2 \cdot 0$ mol Glucose

Solution

Lactose on hydrolysis in presence of an acid or enzyme lactase gives one molecule each of glucose and galactose.

Asked in: MHT CET 2020 (12 Oct Shift 2)

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