During summer season, a milkman usually adds a very small amount of baking soda to fresh milk. Give reason.

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Solution

Dear Student,

During summers, the temperature is very high and hence Lactobacillus increases which there by converts into lactic acid decreasing the pH of milk. So, the milkman usually adds a very small amount of baking soda to fresh milk to increase the pH of the solution as it is a base which neutralise the milk durring summers.

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State reasons for the following statements:

(a) Tap water conducts electricity, whereas distilled water does not.

(b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.

Question 12(b)
A milkman adds a very small amount of baking soda to fresh milk.
(b) Why does this milk take a long time to set as curd?

(i) State reasons for the following statements:

(a) Tap water conducts electricity, whereas distilled water does not.

(b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.

(c) For dilution of acid, acid is added into water and not water into acid.

(d) Dry hydrogen chloride gas does not turn blue litmus red whereas dilute hydrochloric acid does.

(ii) How is Bleaching powder prepared? Give its important uses?

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