How can you show curdling of milk is a chemical change?

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Solution

Curdling of milk is a chemical change because lactic acid bacteria changes the milk permanently to the curd hence it is a chemical change

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Similar questions

	I		II
(a)	Physical change	(i)	Curdling of milk
(b)	Chemical change	(ii)	Demagnetisation of magnets
		(iii)	Digestion of food
		(iv)	Crystallisation of substance
		(v)	Rusting of iron

What is curdling of milk? Is it a desirable change or a undesirable change?

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