Why is sodium kept immersed in kerosene oil?

Important Questions on Metals and Non - Metals

MEDIUM

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Paper-Pen Test>Q 11

Explain the meaning of malleable and ductile.

MEDIUM

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Paper-Pen Test>Q 12

Which chemical process is used for obtaining a metal from its oxide?

HARD

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Paper-Pen Test>Q 13

State two ways to prevent rusting of iron.

HARD

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Paper-Pen Test>Q 14

Show the formation of magnesium chloride from its elements.

MEDIUM

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 1

Name a metal which exists in liquid state in room temperature. (Sodium/ Potassium/ Mercury)

MEDIUM

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 2

What is the nature of zinc oxide? (Acidic / Basic / Amphoteric)

MEDIUM

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 3

Will carbon monoxide ($\mathrm{CO}$) change the colour of blue litmus?

HARD

10th CBSE

IMPORTANT

SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 4

Give reason for the following:
Metals replace hydrogen from dilute acids where as non-metals do not.