Advertisements
Advertisements
प्रश्न
In which of the following, the identity of initial substance remains unchanged?
विकल्प
Curdling of milk
Formation of crystals by process of crystallisation
Fermentation of grapes
Digestion of food
MCQ
Advertisements
उत्तर
Formation of crystals by process of crystallisation
Explanation:
Crystallisation is a physical change, the substance only changes its state/arrangement (forms a solid lattice) but its chemical identity stays the same. Curdling, fermentation and digestion are chemical changes where new substances (changed proteins, acids/alcohols, or breakdown products) are formed.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
