Provide Some Important MCQ Questions for Class 10 Science Acids, Bases and Salts

Here you have got MCQ Questions for Class 10 Science Acids, Bases and Salts with Answers. These will help you with getting prepare with the important Questions for these chapters. It also helps in the revision of the whole concept clearly. It gives an idea about what types of questions can be asked in the examination. These MCQ Questions are prepared as per the Latest Exam Pattern and syllabus. Students can solve these Class 10 Science MCQ Questions of Acids, Bases and Salts with Answers and evaluate your exam preparation level.

Practice the listed 25 MCQ Questions which are given below and score better marks in the exams: -

1. Which one of the following is acidic?

(a) Lemon juice

(b) Tomatoes

(c) Milk

(d) All

2. Which one of the following will turn red litmus blue?

(a) Vinegar

(b) Baking soda solution

(c) Lemon juice

(d) Soft drinks

3. Methyl orange is

(a) Pink in acidic medium, yellow in basic medium

(b) Yellow in acidic medium, pink in basic medium

(c) Colourless in acidic medium, pink in basic medium

(d) Pink in acidic medium, colourless in basic medium.

4. Which one of the following will turn blue litmus red?

(a) Vinegar

(b) Lime water

(c) Baking soda solution

(d) Washing soda solution

5. Acid present in apple is:

(a) Oxalic acid

(b) Malic acid

(c) Acetic acid

(d) Formic acid

6. The nature of calcium phosphate is present in tooth enamel is

(a) Basic

(b) Amphoteric

(c) Acidic

(d) Neutral

7. NaHCO, formed by reaction of

(a) \(NaOH + H_2CO_3\)

(b) \(NaCl + H_2CO_3\)

(c) \(Na_2CO_3 + HCl\)

(d) \(NaOH + Na_2CO_3\)

8. Calcium phosphate is present in tooth enamel. Its nature is

(a) basic

(b) acidic

(c) neutral

(d) amphoteric

9. Which of the following does not form an acidic salt?

(a) Phosphoric acid

(b) Carbonic acid

(c) Hydrochloric acid

(d) Sulphuric acid

10. The chemical formula of caustic potash is

(a) \(NaOH\)

(b) \(Ca(OH)_2\)

(c) \(NH_4OH\)

(d) \(KOH\)

11. Which one of the following is acidic?

(a) Lemon juice

(b) Tomatoes

(c) Curd

(d) All

12. An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change?

(a) Baking power

(b) Lime

(c) Ammonium hydroxide solution

(d) Hydrochloric acid

13. Which one of the following types of medicines is used for treating indigestion?

(a) Antibiotics

(b) Analgesic

(c) Antacid

(d) Antiseptic

14. Butyric acid is found in

(a) Rancid butter

(b) Rancid cake

(c) Stings of bees

(d) All of these

15. An indicator is one kind of the following compound

(a) Strong acid only

(b) Reducing agent

(c) Weak base or acid only

(d) Complex salt

16. Assertion: Universal indicator gives green colour with distilled water.

Reason: pH of distilled water is 7 and it is neutral and universal indicator gives green colour with neutral solution.

(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false.

(d) A is false but R is true.

(e) Both A and R are false.

17. When a bee stings, immediately a paste of lime is put on the sting. Why?

(a) Bee sting is made of a base

(b) Bee sting contains an acid called formic acid. It gets neutralised with CaO .

(c) Bee sting is acidic due to hydrochloric acid and this is neutralised

(d) All of the above.

18. Sodium hydroxide turns phenolphthalein solution

(a) pink

(b) yellow

(c) colourless

(d) orange

19. PH scale of a neutral solution is

(a) 14

(b) 7

(c) 10

(d) 12

20. At what temperature is gypsum heated to form Plaster of Paris?

(a) 90°C

(b) 100°C

(c) 110°C

(d) 120°C

21. Sodium carbonate is a basic salt because it is a salt of

(a) strong acid and strong base

(b) weak acid and weak base

(c) strong acid and weak base

(d) weak acid and strong base

22. What is the pH range of human body?

(a) 7.0 – 7.8

(b) 7.2 – 8.0

(c) 7.0 – 8.4

(d) 7.2 – 8.4

23. Which of the following gives the correct increasing order of acidic strength?

(a) Water < Acetic acid < Hydrochloric acid

(b) Water < Hydrochloric acid < Acetic acid

(c) Acetic acid < Water < Hydrochloric acid

(d) Hydrochloric acid < Water < Acetic acid

24. Acids react with bases to form salt and water. This reaction is known as:

(a) Combination

(b) Decomposition

(c) Neutralisation

(d) reduction

25. Acids react with metals to liberate _________gas

(a) Carbon dioxide

(b) Carbon monoxide

(c) Hydrogen

(d) Water

Answer key

1. (d) All

2. (b) Baking soda solution

3. (a) Pink in acidic medium, yellow in basic medium

4. (a) Vinegar

5. (b) Malic acid

6. (a) Basic

7. (a) \(NaOH + H_2CO_3\)

8. (a) basic

9. (b) Carbonic acid

10. (d) \(KOH\)

11. (d) All

12. (d) Hydrochloric acid

13. (c) Antacid

14. (b) Rancid cake

15. (c) Weak base or acid only

16. (a) Both A and R are true and R is the correct explanation of A.

17. (b) Bee sting contains an acid called formic acid. It gets neutralised with CaO.

18. (a) pink

19. (b) 7

20. (b) 100°C

21. (d) weak acid and strong base

22. (a) 7.0 – 7.8

23. (a) Water < Acetic acid < Hydrochloric acid

24. (c) Neutralisation

25. (c) Hydrogen