1
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
The total number of alkyl bromides (including stereoisomers) formed in the reaction $$M{e_3}C - CH = C{H_2} + HBr \to $$ will be
A
1
B
2
C
3
D
No bromide forms
2
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.33
CH3 $$-$$ C $$ \equiv $$ C MgBr can be prepared by the reaction of
A
CH3 $$-$$ C $$ \equiv $$ C $$-$$ Br with MgBr2
B
CH3 $$-$$ C $$ \equiv $$ CH with MgBr2
C
CH3 $$-$$ C $$ \equiv $$ CH with KBr and Mg metal
D
CH3 $$-$$ C $$ \equiv $$ CH with CH3MgBr
3
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
The isomerisation of 1-butyne to 2-butyne can be achieved by treatment with
A
hydrochloric acid
B
ammoniacal silver nitrate
C
ammoniacal cuprous chloride
D
ethanolic potassium hydroxide
4
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
Which of the following reactions will not result in the formation of carbon-carbon bonds?
A
Cannizzaro reaction
B
Wurtz reaction
C
Reimer-Tiemann reaction
D
Friedel-Crafts acylation
WB JEE Subjects