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 ?

Vedclass pdf generator app on play store
Vedclass iOS app on app store

$(a)$ 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.

Similar Questions

Why does an aqueous solution of an acid conduct electricity?

How is the concentration of hydronium ions $(H_3O^+)$ affected when a solution of an acid is diluted ?

Which one of the following types of medicines is used for treating indigestion ?

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.

Compounds such as alcohols and glucose also contain hydrogen but are not categorised as acids. Describe an Activity to prove it.