Question

3. When fresh mdk is changed into curd will its pH value increase or decrease?
Why? decreasing thonpit loured
4. Give Arrhenius definition of an acid and a base. (CBSE 2009)
5. What happens chemically when quick lime is added to water? (CBSE 2008
6. Name the gas evolved when dilute HCL reacts with Sodium hydrogen carbo
How is it recognized? (CBSE 2008)
7. How does the flow of acid rain water into a niver make the survival of aquatic
in the river difficult? (CBSE 2008)
8. How is the pH of a solution of an acid influenced when it is diluted?
(СЕ
2008 F)
2. How does the pH of the solution change when a solution of base is
(CBSE 2008 F)​

Answer 1

Answer:

desh milk changed into curd the pH value decrease because the curd taste in sour

Answer 2

Explanation:

3) the phone value of milk is 6 since it is acidic in nature. when milk is conveted into curd due to action of bacteria,is formed. there fore ph value of milk is reduced as it turns into curd.