MEDIUM
7th ICSE
IMPORTANT
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Ammonium chloride is heated with a sodium hydroxide solution, and ammonia gas is released, which has a rotten egg smell.

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Important Questions on Language of Chemistry

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 1
Give an example of a chemical reaction characterised by a change in state.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 2

Give an example of a chemical reaction in which the following changes are involved.

Change in smell

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 3
Give an example of chemical reaction that is characterized by change in colour.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 4

Give an example of a chemical reaction in which the following changes are involved.

Change in temperature

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 5
Give an example of a chemical reaction characterised by the formation of a precipitate.
HARD
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 6
Give an example of a chemical reaction characterised by the evolution of a gas.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 1

Write balanced chemical equations for the following word equation: 

Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water.

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 5 - Language of Chemistry>EXERCISES>Q 2

Write the balanced chemical equations for the following reaction:

Aluminium + copper chloride →Aluminium chloride + copper