MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why do refrigerators have a plastic foam core?

Important Questions on Unit Test Paper-2

EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q D
Which synthetic fibre is also called artificial silk? List the properties of this fibre.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q D
Compare the following properties of metals and non-metals: malleability, lustre, and hardness.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q D
Write any four characteristics of an ideal fuel.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q D
When should water not be used to extinguish a fire?
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q E
List the general uses of plastics.
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q E
Define corrosion. Why do copper vessels turn green with the passage of time?
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q E
Write word equation and chemical equation for the following:
Reaction of sodium with water.
EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 22 - Unit Test Paper-2>Unit Test Paper>Q E
Write word equations and chemical equations for the following:
Reaction of magnesium with oxygen.