EASY
10th CBSE
IMPORTANT
Earn 100

Explain, why zinc metal can displace copper from copper sulphate solution but copper cannot displace zinc from zinc sulphate solution?

Important Questions on Metals And Non-Metals

EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 12
State the reason for the following behaviour of zinc metal:
On placing a piece of zinc metal in a solution of mercuric chloride it acquires a shining silvery surface but when it is placed in a solution of magnesium sulphate no change is observed.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 1
Give reasons for the following: Zinc oxide is considered an amphoteric oxide.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 1
Give reasons for the following: Non-metals in general do not displace hydrogen from dilute acids.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 1
Give reasons for the following: Metals conduct electricity
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 2
Give reasons for the following: Na, K and Ca metals form hydrides by combination with hydrogen gas, but most other metals do not.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 2
Give reasons for the following: Aluminium easily combines with oxygen but still it can be used for making kitchen utensils.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 2
Give reasons for the following: Zinc oxide is called an amphoteric oxide.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 3
Give reasons for the following: Metals are regarded as electropositive elements.