Neutralization in Daily Life — Homi Bhabha Class 6 Chemistry MCQs with Solutions
Free Homi Bhabha Class 6 Chemistry Neutralization in Daily Life MCQs with step-by-step solutions (10 questions). Part of Acids, Bases and Neutralization. Practise online on Prepizo — no login needed.
▶ Practise Neutralization in Daily Life online (free)
Questions with solutions
Q1 — Neutralization in Daily Life · easy · theory
When an acid and a base are mixed so that they cancel each other out, the reaction is called:
A. Freezing
B. Filtration
C. Neutralization ✓ Correct
D. Evaporation
Solution: In neutralization an acid and a base react and remove each other’s effect.
Q2 — Neutralization in Daily Life · easy · theory
When an acid reacts with a base, it usually forms:
A. Salt and water ✓ Correct
B. Only salt
C. Only water
D. Two acids
Solution: Neutralization gives salt and water: acid + base → salt + water.
Q3 — Neutralization in Daily Life · easy · theory
After an acid and a base have exactly neutralised each other, the mixture is:
A. Strongly basic
B. Neutral ✓ Correct
C. Strongly acidic
D. Fizzy forever
Solution: When the acid and base cancel out, the leftover mixture is neutral (neither acid nor base).
Q4 — Neutralization in Daily Life · easy · theory
Toothpaste is basic. It protects our teeth by neutralising the ___ made by bacteria in the mouth.
A. Water
B. Salt
C. Acid ✓ Correct
D. Base
Solution: Bacteria produce acid that harms teeth; the basic toothpaste neutralises this acid.
Q5 — Neutralization in Daily Life · medium · theory
When we have stomach acidity, we take an "antacid". An antacid is:
A. A strong acid
B. A mild base ✓ Correct
C. A sugar
D. A salt
Solution: An antacid is a mild base that neutralises the excess acid in the stomach and gives relief.
Q6 — Neutralization in Daily Life · medium · theory
An ant sting is acidic. Rubbing which mild base on it gives relief?
A. Lemon juice
B. Vinegar
C. Baking soda ✓ Correct
D. Tamarind paste
Solution: Baking soda is a base, so it neutralises the acid of the ant sting and reduces the burning.
Q7 — Neutralization in Daily Life · medium · theory
A farmer finds the soil is too acidic. To neutralise it, the farmer adds:
A. Sugar
B. Vinegar
C. Lime (a base) ✓ Correct
D. Lemon juice
Solution: Lime is a base, so adding it neutralises the extra acid and makes the soil good for crops.
Q8 — Neutralization in Daily Life · medium · theory
Waste water from a factory is too acidic. Before letting it out, workers neutralise it by adding a:
A. Lot of sugar
B. Layer of oil
C. Base ✓ Correct
D. Stronger acid
Solution: Adding a base neutralises the acidic waste so it is safer for the environment.
Q9 — Neutralization in Daily Life · hard · theory
A wasp sting is basic (alkaline). Which household item would help by neutralising it?
A. Vinegar (an acid) ✓ Correct
B. Lime water
C. Baking soda
D. Soap
Solution: Since the sting is basic, an acid like vinegar neutralises it. Baking soda, soap and lime water are all bases.
Q10 — Neutralization in Daily Life · hard · theory
Sometimes soil is too basic (alkaline) for crops. To bring it back towards neutral, a farmer should add a material that is:
A. Acidic ✓ Correct
B. Basic
C. A sugar
D. A salt of common salt
Solution: A basic soil is neutralised by adding an acidic material, which cancels the extra base.