2. Acids, Bases and Salts
medium

एक ग्वाला ताजे दूध में थोड़ा बेकिग सोडा मिलाता है।

$(a)$ ताज़ा दूध के $pH$ के मान को $6$ से बदलकर थोड़ा क्षारीय क्यों बना देता है?

$(b)$ इस दूध को दही बनने में अधिक समय क्यों लगता है?

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
Science

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