EASY
10th CBSE
IMPORTANT
Earn 100

Name a metal that combines with hydrogen gas. Name the compound formed.

Important Questions on Metals And Non-Metals

HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 3

Sample pieces of five metals, A, B, C, D and E were added to the tabulated solutions separately. The results observed were as shown in the table below.

Metal Solution
FeSO4 CuSO4 ZnSO4 AgNO3 Al2SO43

 

Question Image
Based on the observations recorded in the table answer following questions
(i) Which is the most reactive metal?
(ii) Which is the least reactive metal?
(iii) What would be observe if metal D were added to the solution of copper (II) sulphate?
(iv) What would be observed if metal E were added to a solution of iron (II) sulphate?
(v) Arrange the metals A, B, C, D and E in the order of their decreasing reactivity.

HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 4
An element A burns with a golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of the product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 5
What happens when an iron strip is put into separate beakers containing aqueous solution of copper sulphate and zinc sulphate? Where is iron placed in the activity series with respect to copper? Describe the steps involved in the extraction of zinc from its sulphide and carbonate ores. Support your answer with balanced chemical equation for the chemical reactions involved in the process.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 1
The electromagnetic concentration of ore is followed when:
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 2
Silver articles become black on prolonged exposure to air. This is due to the formation of
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 3
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(i) Au (ii) Cu
(iii) Na (iv) K
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 4
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain a non-metal as one of its constituents?
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 5
Which one of the following figures correctly describes the process of electrolytic refining?