A milkman adds a very small amount of baking soda to fresh milk. (a) Why does he shift pH of fresh m

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2. Acids, Bases and Salts

medium

A milkman adds a very small amount of baking soda to fresh milk.

$(a)$ Why does he shift the $pH$ of the fresh milk from $6$ to slightly alkaline ?

$(b)$ Why does this milk take a long time to set as curd ?

Option A

Option B

Option C

Option D

Solution

$(a)$ The milkman shifts the $pH$ of the fresh milk from $6$ to slightly alkaline because in alkaline condition, milk does not set as curd easily.

$(b)$ since this milk is slightly basic than usual milk, acids produced to set the curd are neutralized by the base. Therefore, it takes a longer time for the curd to set.

Standard 10

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medium

A milkman adds a very small amount of baking soda to fresh milk. $(a)$ Why does he shift the $pH$ of the fresh milk from $6$ to slightly alkaline ? $(b)$ Why does this milk take a long time to set as curd ?

Solution

Similar Questions

While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid ?

Write word equations and then balanced equations for the reaction taking place when – $(a)$ dilute sulphuric acid reacts with zinc granules. $(b)$ dilute hydrochloric acid reacts with magnesium ribbon.

Why does distilled water not conduct electricity, whereas rain water does ?

Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate) ?

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A milkman adds a very small amount of baking soda to fresh milk.

$(a)$ Why does he shift the $pH$ of the fresh milk from $6$ to slightly alkaline ?

$(b)$ Why does this milk take a long time to set as curd ?

Write word equations and then balanced equations for the reaction taking place when –

$(a)$ dilute sulphuric acid reacts with zinc granules.

$(b)$ dilute hydrochloric acid reacts with magnesium ribbon.