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7th ICSE
IMPORTANT
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The chemical reaction between quick lime and water is characterised by:

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Important Questions on Language of Chemistry

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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 1

The substances that take part in a chemical reaction are called products.

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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 2
A reaction in which chemical change takes place is called a chemical reaction
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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 3
The law of conservation of mass states that during a chemical reaction the total mass of the reactants must not be equal to the total mass of the products.
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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 4
A chemical equation signifies the exact composition of the substances.
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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 5
A catalyst is a substance which alter the speed of the reaction.
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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 1

Find the odd one out. Give scientific reasons for your answer

Melting of wax, drying of wet clothes, grinding of substance, burning of the candle.

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7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 2

Find the odd one out. Give scientific reason for your answer.

Close contact, Solution form, Light, Air

EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 6 - Language of Chemistry>EVALUATE YOUR UNDERSTANDING>Q 3

Find the odd one out. Give scientific reasons for your answer:

Combination, decomposition, catalyst, displacement