IIT FOUNDATION
Test - 2
Name-___________________________________________________
I. Answer the following : 5 x 2 = 10 M

1) Differentiate between Oxidant and reductant.
2) Why do atoms combine ?
3) Why are molecular mere stable than atoms.
4) Differentiate between polar covalent bond and non polar covalent bond.
5) What are the bond types present in the following substances ?
i) Magnesium Oxide ii) Ammonia
II. Answer the following : 2 x 6 = 12 M
6) Explain how the following molecular are formed
i) Sodium Chloride
ii) Oxygen
iii) Water
7) Write the electron dot formula for the following molecular.
i) Calcium Carbide
ii) Nitrogen
iii) Hydrogen Chloride
iv) Hydrogen
v) Florine
vi) Methane
III. Differentiate between ionic compounds and covalent compounds. 1 x 3 = 3 M
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