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SAI International School
Class-VII
Subject-Chemistry
Topic-Acids, Bases and Salts
Sub topic-Neutralisation reaction in daily life

Home Assignment

Objective Question:-

MCQs:-

Choose the correct option

1. An ant sting contains:
a. Lactic acid
b. Citric acid
c. Nitric acid
d. Formic acid
2. Acidity is caused due to excess __________ in our stomach.
a. Hydrochloric acid
b. Sulphuric acid
c. Phosphoric acid
d. Nitric acid
3. In case of a wasp sting, the affected area should be washed with:
a. Baking soda
b. Acetic acid
c. Citric acid
d. Hydrochloric acid
4. What is the effect of acid rain on the soil?
a. It increases the pH of the soil.
b. It decreases the pH of the soil.
c. The pH remains unchanged.
d. Acid rain does not affect the pH of soil.
5. ‘Slaked lime’ is chemically known as:
a. Magnesium hydroxide
b. Sodium hydroxide
c. Potassium hydroxide
d. Calcium hydroxide
6. Milk of Magnesia is a common
a. Antacid
b. Acid
c. Pain killer
d. Mineral
7. Which of the following can neutralise the effect of acids?
a. Common salt
b. Vinegar

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