What are amphoteric oxides?

Important Questions on Metals and Non-metals

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 3

Metals displace hydrogen from dilute acids, where as non-metals do not. Give reason.

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 4

Why does copper not displace hydrogen from dilute acids?

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 5

Why does the blue colour copper sulphate solution fade away, when a rod of zinc metal is dipped into it?

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 6

What would happen, if a silver spoon is placed in a concentrated aqueous solution of copper sulphate?

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 7

A copper coin is immersed in a solution of silver nitrate for some time. What will happen to the coin and the colour of the solution?

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 8

Name any three neutral oxides.

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 9

Name the element which has the highest density?

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 10

What is an ion?