EASY
9th ICSE
IMPORTANT
Earn 100

Electrolysis is a chemical change. Justify the statement.

Important Questions on Chemical Changes and Reactions

EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 1
What is the photochemical reaction? Support your answer with two examples.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 2
What are electrochemical reaction? Give two examples.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 3
Explain why heating of ammonium chloride can be said both a physical and a chemical change. Give one more example.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 4
Define neutralization.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 4
Define exothermic reaction.
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 5
What do you observe when chlorine is passed through potassium iodide solution?
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 5
What do you observe when chlorine is passed through a potassium bromide solution?
EASY
9th ICSE
IMPORTANT
TOGETHER WITH CHEMISTRY>Chapter 2 - Chemical Changes and Reactions>PRACTICE QUESTIONS>Q 5
What do you observe when potassium iodide is added to lead nitrate solution?