HARD
7th ICSE
IMPORTANT
Earn 100

Write the word equation for the reaction between zinc and hydrochloric acid when hydrogen gas is evolved.

Important Questions on Test Paper 2

MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 2
What is a balanced equation?
HARD
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 2

Balance the following equation:

H2+N2→NH3

MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 3

Identify each as a physical or chemical change:

Question Image

HARD
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 3
Give two examples each of periodic, slow and undesirable changes.
HARD
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 3
Draw the labelled structure of an atom.
MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 3
Give the valency of the following:

Nitrogen in ammonia

MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 3
Give the valency of the following:

Carbon in methane

HARD
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 16 - Test Paper 2>Test Paper 2>Q 3
Describe one use of the following component of air:

oxygen