HARD
9th ICSE
IMPORTANT
Earn 100

Sodium nitrate is stable towards heat.

28.57% studentsanswered this correctly

Important Questions on Chemical Changes and Reactions

HARD
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 2
Neutralisation is a type of double decomposition reaction.
MEDIUM
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 3
What is a promoter?
MEDIUM
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 4
Name the four important types of chemical reactions. 
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 5
Write any two conditions for a chemical change.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 6
The rate of a chemical reaction is more when temperature increases. Justify.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 7

Complete and balance the equation.

2Al+6HCl → _____  +  _____

EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 7

Complete and balance the chemical equation.

CuSO4+Fe → _____  +  _____

MEDIUM
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>Self Evaluation Test>Q 7

Complete and balance the equation.

NH4NO3 →∆ _____ + _____