SCIENCE
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Very Basic
|
|
|
Slightly Basic
|
|
|
Very Acidic
|
|
|
Slightly Acidic
|
Detailed explanation-1: -Answer: D-It is slightly acidic.
Detailed explanation-2: -Milk-pasteurized, canned, or dry-is an acid-forming food. Its pH level is below neutral at about 6.7 to 6.9. This is because it contains lactic acid.
Detailed explanation-3: -Fresh milk has an acidic character due to its pH of . By the action of bacteria, this milk is transformed into curd, which further increases the curd’s acidity and lowers its pH from 6 to less than 6. The lactose in milk is converted to lactic acid which is present in curd.
Detailed explanation-4: -Explanation: Milk has a pH of around 6.5 to 6.7, which makes it slightly acidic.
Detailed explanation-5: -Answer: Fresh milk has a pH of 6 and when it changes into curd the pH value will decrease because curd contains lactic acid. As the production of acid takes place the pH value becomes lesser than 7 which is the cause of acidity. The acidity will increase on this conversion and tastes will change to sour.