Name two salts that are used in photography.

Important Questions on Chemical Changes and Reactions

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 01>Q 5

Name the reaction, in which two compounds exchange their ions to form two new compounds.

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 01>Q 6

Name insoluble substance formed in a reaction between barium chloride and sodium sulphate.

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 02>Q 1

Give one reaction which is accompanied by evolution of heat.

MEDIUM

9th ICSE

IMPORTANT

All In One ICSE Chemistry>Chapter 2 - Chemical Changes and Reactions>CHECK POINT 02>Q 2

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

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.