HARD
10th CBSE
IMPORTANT
Earn 100

How chromium and manganese are reduced by aluminium?

Important Questions on Metals and Non-Metals

MEDIUM
10th CBSE
IMPORTANT
What happens when copper articles remain exposed to air for a considerable time? Give reaction involved.
EASY
10th CBSE
IMPORTANT
Give the name and chemical composition of:
(a) Alloys of aluminium.
(b) Alloys of copper (Any three).
(c) Alloys of silver.
HARD
10th CBSE
IMPORTANT
Explain how copper is extracted from its ore.
HARD
10th CBSE
IMPORTANT
Differentiate ionic compounds and covalent compounds.
MEDIUM
10th CBSE
IMPORTANT
What happens when sodium and potassium reacts with oxygen? Explain with reaction.
MEDIUM
10th CBSE
IMPORTANT
Show the reaction of magnesium and manganese with dilute nitric acid.
MEDIUM
10th CBSE
IMPORTANT
Compare the chemical properties of metals and non- metals with respect to the nature of oxides, nature of ions, nature of chloride ions, nature of hydrides and oxidising and reducing nature.
MEDIUM
10th CBSE
IMPORTANT
Diagrammatically represent the sharing of electrons between hydrogen and oxygen to form water.