Among the following the maximum covalent character is shown by the compound
(1)MgCl2
(2)FeCl2
(3)SnCl2
(4) AlCl3
According to Fajans rule, cation with greater charge and smaller size favours covalency.
Which of the following elements has the lowest melting point?
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The Chemical formula of Ammonium nitrate is ___________.
Which is the most economical method of removing solid matter from water?
NaHCO3 is chemical formula for ___________.
A change in which no new substances are formed is called _____________.
Which of the following is the best fire-extinguisher?
Which of the following statements are CORRECT?
I. Melamine is a Thermo setting plastic.
II. It resists fire.
III It is a poor conductor of heat.
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