In which of the following, the identity of initial substance remains unchanged?

Question: In which of the following, the identity of initial substance remains unchanged? (a) Curdling of milk (b) Formation of crystals by process of

Question: In which of the following, the identity of initial substance remains unchanged?

(a) Curdling of milk

(b) Formation of crystals by process of crystallisation

(c) Fermentation of grapes

(d) Digestion of food [CBSE OD, Set 1, 2020]


Answer: (b) Formation of crystals by process of crystallisation.


Question: In which of the following, the identity of initial substance remains unchanged? (a) Curdling of milk (b) Formation of crystals by process of crystallisation (c) Fermentation of grapes (d) Digestion of food [CBSE OD, Set 1, 2020]