EASY
7th ICSE
IMPORTANT
Earn 100

Give reason for the following sentence:

Iron powder is used in the production of ammonia.

Important Questions on The Language of Chemistry

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 2

Give reason for the following:

Iron and sulphur are heated to produce a compound.

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 3

Give reason for the following sentence:

Chlorophyll is necessary for photosynthesis.

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 4

Give reason for the following sentence:

A foul smell is produced when iron sulphide reacts with hydrochloric acid.

MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 1
What are the two ways of representing a chemical reaction using equations?
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 2
What is a balanced equation?
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 3
Give a balanced equation for the reaction of hydrogen and oxygen to form water.
MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 4
Write the chemical equation showing the reaction of nitrogen and hydrogen.
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 5

Explain what happens when sodium is added to water.