Question

Assertion (A): Lactobacillus bacteria are added to milk to convert it into curd.

Reason (R): Lactobacillus bacteria add to the nutritive value by increasing vitamin B₁₂ content.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

Explanation:

Both statements are true: Lactobacillus helps turn milk into curd and increases its vitamin B₁₂ content. The increase in vitamin B₁₂ does not explain the curdling, which occurs because lactic acid coagulates milk proteins.