JEE MAIN - Chemistry (2019 - 11th January Evening Slot - No. 4)
Which of the following compounds reacts with ethylmagnesium bromide and also decolourizes bromine water solution:
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Explanation
For option (B) :
C2H5MgBr performs addition reaction with - C $$ \equiv $$ N.
C2H5MgBr performs substitution reaction with ester -COOCH3.
Conjugated dienes (two double bonds separated by a single bond) gives Br water test. Either 1-2 or 1-4 addition can happen.
For option (C) :
C2H5MgBr reacts with -OH group and creates alkane C2H6.
As here C = C present, so this compound gives Br water tests.
C2H5MgBr performs addition reaction with - C $$ \equiv $$ N.
C2H5MgBr performs substitution reaction with ester -COOCH3.
Conjugated dienes (two double bonds separated by a single bond) gives Br water test. Either 1-2 or 1-4 addition can happen.
For option (C) :
C2H5MgBr reacts with -OH group and creates alkane C2H6.
As here C = C present, so this compound gives Br water tests.
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