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By Savita S. More

Maharashtra Board Class 8 Introduction to Acid and Base MCQ

Why are dilute acids less harmful than concentrated acids?

  1. a) They are less reactive.
  2. b) They have a lower pH.
  3. c) They produce fewer hydrogen ions.
  4. d) They cause less corrosion.

Answer: c) They produce fewer hydrogen ions.

 

Which of the following is a use of hydrochloric acid?

  1. a) Baking
  2. b) Water sterilization
  3. c) Battery production
  4. d) Paper production

Answer: b) Water sterilization

 

What is the taste of bases?

  1. a) Sweet
  2. b) Bitter
  3. c) Sour
  4. d) Salty

Answer: b) Bitter

 

What type of acid is found in lemon and other fruits?

  1. a) Hydrochloric acid
  2. b) Citric acid
  3. c) Sulfuric acid
  4. d) Nitric acid

Answer: b) Citric acid

 

What is the main constituent of bases?

  1. a) Hydrogen ions (H+)
  2. b) Hydroxide ions (OH-)
  3. c) Nitrate ions (NO3-)
  4. d) Sodium ions (Na+)

Answer: b) Hydroxide ions (OH-)

 

Which acid is used in the production of chemical fertilizers?

  1. a) Nitric acid
  2. b) Acetic acid
  3. c) Hydrochloric acid
  4. d) Citric acid

Answer: a) Nitric acid

 

What happens when an acid reacts with a metal?

  1. a) Liberation of CO2 gas
  2. b) Formation of water
  3. c) Liberation of hydrogen gas
  4. d) Formation of salt

Answer: c) Liberation of hydrogen gas

 

 

What is the product of the neutralization of hydrochloric acid and sodium hydroxide?

  1. a) Sodium chloride + water
  2. b) Hydrochloric acid + water
  3. c) Sodium hydroxide + water
  4. d) Hydrogen chloride + oxygen

Answer: a) Sodium chloride + water

 

How do antacids work in the stomach?

  1. a) By increasing acidity
  2. b) By neutralizing excess acid
  3. c) By promoting digestion
  4. d) By inhibiting the production of acid

Answer: b) By neutralizing excess acid

 

 

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