Question

Curd turning into sour which type of change ?

Answer 1

Answer:

Curd turning into sour which type of change ?

Permanent Change

Answer 2

Answer:

Here is your answer

Explanation:

The name of the process which converts milk into curd is lactic fermentation and in this process the lactose sugar of milk is converted into lactic acid by lactic acid bacteria. The acid thus produced curdles the milk and gives it sour taste.