MEDIUM
9th ICSE
IMPORTANT
Earn 100

"Respiration is an exothermic process". Justify your statement.

Important Questions on Chemical Changes and Reactions

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 02>Q 3
Endothermic reaction is also known as _____.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 02>Q 4
What is meant by the term photochemical reaction?
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 02>Q 5
Define the term electrochemical reaction, Give one example.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>EXAM PRACTICE>Q 1
_____ is always either taken in or given out.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>EXAM PRACTICE>Q 2
Chemical changes bring a change in the _____ properties of matter.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>EXAM PRACTICE>Q 3
When calcium oxide reacts with water to form calcium hydroxide, the reaction is called _____ reaction.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>EXAM PRACTICE>Q 4
Decomposition of substance using heat is called _____ decomposition.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>EXAM PRACTICE>Q 5
If one of the product in double displacement reaction is insoluble in aqueous medium, the reaction is called _____ reaction.