Question

4. Fresh milk has pH 6. When it changes into curd will pH value increase or decrease why?
5. (a) Do basic solutions have H* ion ? If so why are they baslc ?
6. (b) When solution becomes more acldic pH becomes high or less
7. (a) Give the pH of pure water (b) colour of universal indicator when dipped in sugar solution
Ig A sample of rain water showed yellow colour with universal Indicator. Is it acidic or basic?
& (a) The pH of 3 acids A,B,C are 5, 2.8, and 3.5. arrange them in increasing order of acidic
strength
(b) The pH of cold drink is 5. What will be the action on red and blue litmus?
(a) why it is wrong to treat bee sting with vinegar and wasp sting with baking soda
10. (a) Name the acid secreted in stomach and give its pH. (b) Give the pH during indigestion.
(c) what are antacid ?how it works?
Your given two solutions A and B. the pll of the solution A is 6 and B is 8. Identily acidic and​

Answer 1

Answer:

4. Fresh milk has pH 6. When it changes into curd will pH value increase or decrease why?

5. (a) Do basic solutions have H* ion ? If so why are they baslc ?

6. (b) When solution becomes more acldic pH becomes high or less

7. (a) Give the pH of pure water (b) colour of universal indicator when dipped in sugar solution

Ig A sample of rain water showed yellow colour with universal Indicator. Is it acidic or basic?

& (a) The pH of 3 acids A,B,C are 5, 2.8, and 3.5. arrange them in increasing order of acidic

strength

(b) The pH of cold drink is 5. What will be the action on red and blue litmus?

(a) why it is wrong to treat bee sting with vinegar and wasp sting with baking soda

10. (a) Name the acid secreted in stomach and give its pH. (b) Give the pH during indigestion.

(c) what are antacid ?how it works?

Your given two solutions A and B. the pll of the solution A is 6 and B is 8. Identily acidic and