Question

$what \: happens \: when \: milk \: is \: left \: open \: at \: room \: temperature \: during \: summers \: ?$
class 10 chemistry ​

Answer 1

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When the milk is left open at room temperature, its taste changes and becomes sour due to the breakdown of lactose into lactic acid because of the lactic acid bacteria which also lower the PH of the milk due to the formation of lactic acid.

Answer 2

Answer:

Milk when kept at room temperature it is spoiled and gets sour as a result of fermentation due to growth of bacteria

Explanation: