Question

when we mix citric acid with milk

Answer 1

When milk becomes too acidic, like when we add lemon juice or when it goes sour, the negative charge on the casein groupings becomes neutralized. ... On the other hand, if youadd lemon juice or other acid to hotmilk, the curdling happens much faster.

Answer 2

Milk will be spoiled due to sour taste present In citric acid . for example: even a small drop of lemon can spoil the milk.