MEDIUM
10th CBSE
IMPORTANT
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How the atoms complete their nearest noble gas configuration?

Important Questions on Metals and Non-Metals

HARD
10th CBSE
IMPORTANT
Explain the reaction of following with water.
(a) potassium
(b) sodium
(c) calcium
EASY
10th CBSE
IMPORTANT
Compare the chemical properties of metals and non- metals with respect to reaction of water and dilute acids.
EASY
10th CBSE
IMPORTANT
Diagrammatically how will you represent aluminium ion formation?
MEDIUM
10th CBSE
IMPORTANT
Explain the formation of calcium oxide.
EASY
10th CBSE
IMPORTANT
Explain the sharing of electrons in nitrogen molecule.
MEDIUM
10th CBSE
IMPORTANT
What are the three steps involved in the process of extraction of metals?
MEDIUM
10th CBSE
IMPORTANT
Why silver anklets lose their shine and become dull and gradually turn black? Give reaction involved.
HARD
10th CBSE
IMPORTANT
Give reason - pure gold is not used for making jewellery.