Multiple choice

In milk diary technician added a small pinch of baking soda to milk which had $p{ H }$ close to 6, as a result $p{ H }$ of the medium:

  1. become close to 2

  2. become close to 4

  3. become close to 7

  4. become close to 8
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Baking soda (sodium bicarbonate) is a mild base. Adding a base to an acidic medium (pH 6) will neutralize the acid and shift the pH toward neutral (7).

AI explanation

Fresh milk has a pH close to 6, making it slightly acidic. Baking soda is a base, so adding a small pinch to the milk initiates a neutralization reaction. This reduces the acidity of the medium and shifts the pH upward toward the neutral value, making it become close to 7.

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