1.

Explain the types of double displacement reactions with examples.

Answer»

Solution :There are two major CLASSES of double displacement reactions .They are,
(i)Precipitation Reactions
When aqueous solutions of two compounds are mixed ,if they REACT to form an insoluble compound and a SOLUBLE compound,then is called precipitation reaction.
`Pb(NO_(3))_(2(aq))+2Kl_((aq))toPbI_(2)darr+2KNO_(3(aq))`
(ii)Neutrlisation Reactions
Another type of displacement reaction in which the ACID reacts with the base to form a salt and water.It is called .NEUTRALISATION reaction. as both acid and base neutralize each other.
`NaOH_((aq))+HCl_((aq))toNaCl_((aq))+H_(2)O_((1))`


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