pH Value of Acid and Alkali

Q.

Write a short note on pH.

Q.

Is lemon juice acidic or basic?

Q. The pH scale is a measure of ions concentration in a solution.

1. oxygen
2. hydroxide
3. hydrogen

Q. Which of the following is a strong acid?

1. Citric acid
2. Acetic acid
3. Tartaric acid
4. Hydrochloric acid

Q. State true or false:
pH is a measure of the concentration of hydrogen ions in a solution.

1. True
2. False

Q.

If the pH value of a substance is below seven then it is ______ in nature.

1. acidic

2. basic

3. neutral

4. alkaline

Q.

Which of these is/are true about a base?

1. Bases are sour in taste

2. Bases turn blue litmus blue.

3. Bases turn red litmus blue​.

4. Bases are soapy to touch.

Q.

What is the pH of distilled water?

1. 5.6

2. 6.3

3. 7

4. 13

Q. pH of solutions A, B, C, and D are 1, 8, 13, and 5, respectively. Increasing order of acidity from bottom is:

1. C
2. B
3. D
4. A

Q.

What is the pH of Milk of Lime?

1. More than 7

2. Less than 7

3. Any value between 0 to 14

4. Equal to 7

Q.

Find the odd one out. Give reasons for your choice.

1. citric acid

2. lactic acid

3. sulphuric acid

4. oxalic acid

Q.

What is the pH of Milk of Lime?

1. More than 7

2. Any value between 0 to 14

3. Less than 7

4. Equal to 7

Q.

Plants grow best when the pH of the soil is close to 7.

1. True

2. False

Q. Choose the weakest acid from the given options.

1. Sulphuric acid
2. Citric acid
3. Hydrochloric acid
4. Nitric acid

Q.

A solution has a pH value of 2. It can be concluded that the given solution is _______ in nature.

1. strongly basic

2. weakly basic

3. strongly acidic

4. weakly acidic

Q. DIFFERENCE BETWEEN "US ENGLISH " AND "BRITISH OR INDIAN ENGLISH "

Q. At what pH is a solution neutral?

1. pH 1
2. pH 7
3. pH 14
4. pH 5.5

Q. If we will make a solution of strong acid & neutral solution (rain water etc) what result we will get?

Q.

Pick the incorrect pair.

1. Bases - bitter

2. Acids - sour

3. Salts - sweet

4. None of the above

Q.

If solution X has a pH of 6, then X is:

1. Strong acid

2. Weak acid

3. Weak base

4. Strong base

Q.

what is pH?

what to do with ACIDS and BASES with this?

Q.

If pH of X is 4 and pH of Y is 10. Then X is more basic than Y.

1. True

2. False

Q.

A solution has a pH value of 2. It can be concluded that the given solution is _______ in nature.

1. strongly basic

2. weakly basic

3. strongly acidic

4. weakly acidic

Q. The solution with pH value of ____ has the highest hydronium ion concentration.

1. 1
2. 7
3. 14
4. 5.5

Q. The pH of two solutions A and B are 11 and 7.7 respectively. What can you say about the nature of these solutions?

1. A is strongly acidic and B is weakly acidic.
2. A is strongly basic and B is weakly basic.
3. Both A and B are strongly acidic.
4. Both A and B are strongly basic.

Q. What will be the pH value of the strongest base?

1. 14

Q.

What will be the pressure of the gaseous mixture when 0.5 l of H² at 0.8 bar and 2 l

Q.

A solution has a pH value of 2. It can be concluded that the given solution is _______ in nature.

1. strongly basic

2. strongly acidic

3. weakly basic

4. weakly acidic

Q. If a solution turns red litmus blue, its pH is likely to be:

1. 1
2. 4
3. 5
4. 10

Q. What is the change in pH, when the solution of base is diluted with water?