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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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

You have been provided with three test tubes. One of them contains distilled water and the other two contaln an acidic solution and a basic solution, respectlvely. If you are glven only red litmus paper. how will you identify the contents of each test tube ?

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.

You have two solutions, $A$ and $B$. The $pH$ of solution $A$ is $6$ and $pH$ of solution $B$ is $8$. Which solution has more hydrogen ion concentration Which of this is acidic and which one is basic?

Give two important uses of washing soda and baking soda.

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

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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.