MEDIUM
10th CBSE
IMPORTANT
Earn 100

Name three non-metallic oxides which are acidic. What happens when they are dissolved in water?

Important Questions on Metals and Nonmetals

MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 12
State any four uses of aluminium.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 13

From among the following, choose metals and non-metals. State one of the properties on the basis of which you have made your choice.

(i) Graphite (ii) Sodium (iii) Sulphur (iv) Helium

HARD
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 14
What happens when NH4OH is added to an aqueous solution of aluminium chloride?
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 15
What is rust? How is it formed?
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 16
What do you mean by corrosion of metals?
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 17
Explain why iron sheets are coated with zinc.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 18
Mention any one method by which corrosion of metals can be prevented.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 19
What is an alloy? Write the composition of brass or bronze.