Acids, Bases and Salts Quiz | Grade 10 Science Interactive MCQ | Concept of Maths

Question 1

1. What is the pH range of the human body?

A) 7.0 to 7.8

B) 5.5 to 6.5

C) 8.0 to 9.0

D) 6.0 to 7.0

Answer

Correct Answer: A

Question 2

2. Which acid is naturally present in a tomato?

A) Acetic acid

B) Citric acid

C) Oxalic acid

D) Tartaric acid

Answer

Correct Answer: C

Question 3

3. What are the general products when an acid reacts with a metal oxide?

A) Salt and water

B) Salt and hydrogen gas

C) Metal and water

D) Only salt

Answer

Correct Answer: A

Question 4

4. Which of the following is considered a strong base?

A) Ammonium hydroxide

B) Sodium hydroxide

C) Calcium hydroxide

D) Magnesium hydroxide

Answer

Correct Answer: B

Question 5

Question 6

6. Tooth decay starts when the pH of the mouth is lower than:

A) 7.0

B) 6.5

C) 5.5

D) 4.5

Answer

Correct Answer: C

Question 7

7. Which gas is usually liberated when a dilute acid reacts with an active metal?

A) Oxygen

B) Hydrogen

C) Carbon dioxide

D) Nitrogen

Answer

Correct Answer: B

Question 8

8. What is the common name of the compound \( CaOCl_2 \)?

A) Baking powder

B) Washing soda

C) Bleaching powder

D) Plaster of Paris

Answer

Correct Answer: C

Question 9

9. The color of phenolphthalein indicator in an acidic medium is:

A) Pink

B) Red

C) Colorless

D) Blue

Answer

Correct Answer: C

Question 10

10. Which of the following salts does NOT contain water of crystallization?

A) Blue vitriol

B) Washing soda

C) Baking soda

D) Gypsum

Answer

Correct Answer: C

Question 11

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

A) Baking powder

B) Lime

C) Ammonium hydroxide solution

D) Hydrochloric acid

Answer

Correct Answer: D

Question 12

12. "Brine" is an aqueous solution of:

A) Sodium carbonate

B) Sodium chloride

C) Sodium bicarbonate

D) Sodium hydroxide

Answer

Correct Answer: B

Question 13

13. A nettle sting is a natural source of which acid?

A) Methanoic acid

B) Lactic acid

C) Citric acid

D) Tartaric acid

Answer

Correct Answer: A

Question 14

14. What is the general nature of non-metallic oxides?

A) Acidic

B) Basic

C) Neutral

D) Amphoteric

Answer

Correct Answer: A

Question 15

15. During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through a guard tube containing calcium chloride. The role of calcium chloride is to:

A) Absorb the evolved gas

B) Moisten the gas

C) Absorb moisture from the gas

D) Absorb chloride ions

Answer

Correct Answer: C

Question 16

16. Which of the following is an olfactory indicator?

A) Litmus

B) Vanilla extract

C) Turmeric

D) Methyl orange

Answer

Correct Answer: B

Question 17

17. The reaction between an acid and a base to give a salt and water is known as a:

A) Oxidation reaction

B) Reduction reaction

C) Neutralization reaction

D) Decomposition reaction

Answer

Correct Answer: C

Question 18

18. What is the number of water molecules present in one formula unit of gypsum?

A) \(\frac{1}{2}\)

B) 1

C) 2

D) 10

Answer

Correct Answer: C

Question 19

19. Which acid is present in sour milk (curd)?

A) Lactic acid

B) Citric acid

C) Acetic acid

D) Oxalic acid

Answer

Correct Answer: A

Question 20

20. Plaster of Paris is obtained by heating:

A) Gypsum at 373 K

B) Gypsum at 273 K

C) Limestone at 373 K

D) Limestone at 273 K

Answer

Correct Answer: A

Accepted Answer

Correct Answer: B

Mastering Acids, Bases & Salts: Grade 10 Science Quiz | Concept of Maths

Mastering Acids, Bases & Salts: Grade 10 Science Quiz | Concept of Maths

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5. What is the chemical formula of baking soda?

6. Tooth decay starts when the pH of the mouth is lower than:

7. Which gas is usually liberated when a dilute acid reacts with an active metal?

8. What is the common name of the compound \( CaOCl_2 \)?

9. The color of phenolphthalein indicator in an acidic medium is:

10. Which of the following salts does NOT contain water of crystallization?

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

12. "Brine" is an aqueous solution of:

13. A nettle sting is a natural source of which acid?

14. What is the general nature of non-metallic oxides?

15. During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through a guard tube containing calcium chloride. The role of calcium chloride is to:

16. Which of the following is an olfactory indicator?

17. The reaction between an acid and a base to give a salt and water is known as a:

18. What is the number of water molecules present in one formula unit of gypsum?

19. Which acid is present in sour milk (curd)?

20. Plaster of Paris is obtained by heating:

Acids, Bases and Salts Quiz | Grade 10 Science Interactive MCQ | Concept of Maths

1. What is the pH range of the human body?

2. Which acid is naturally present in a tomato?

3. What are the general products when an acid reacts with a metal oxide?

4. Which of the following is considered a strong base?

Mastering Acids, Bases & Salts: Grade 10 Science Quiz | Concept of Maths

Mastering Acids, Bases & Salts: Grade 10 Science Quiz | Concept of Maths

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5. What is the chemical formula of baking soda?

6. Tooth decay starts when the pH of the mouth is lower than:

7. Which gas is usually liberated when a dilute acid reacts with an active metal?

8. What is the common name of the compound \( CaOCl_2 \)?

9. The color of phenolphthalein indicator in an acidic medium is:

10. Which of the following salts does NOT contain water of crystallization?

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

12. "Brine" is an aqueous solution of:

13. A nettle sting is a natural source of which acid?

14. What is the general nature of non-metallic oxides?

15. During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through a guard tube containing calcium chloride. The role of calcium chloride is to:

16. Which of the following is an olfactory indicator?

17. The reaction between an acid and a base to give a salt and water is known as a:

18. What is the number of water molecules present in one formula unit of gypsum?

19. Which acid is present in sour milk (curd)?

20. Plaster of Paris is obtained by heating: