1.

Give test to differentiate 1,1-dichloroethane and 1,2-dichloroethane :

Answer»

2,4-DNP then aq. KOH
aq. KOH then 2, 4-DNP
`NaHSO_(3)`
Lucas reagent

Solution :(B) `CH_(3)-underset(Cl)underset(|)(CH)-Cl overset(aq. KOH)rarr CH_(3)-CHO overset(2,4-DNP)rarr+ve` TEST
`underset(Cl)underset(|)(CH_(2))-underset(Cl)underset(|)(CH_(2))overset(aq.KOH)rarr underset(OH)underset(|)(CH_(2))-underset(OH)underset(|)(CH_(2)) overset(2,4-DNP)rarr -ve` test.


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