Alkenes

Question 1

Hydrazone

Answer 1

NNH2

Question 2

Vinyl Halide

Answer 2

C=C-Br

Question 3

Alkene to Alkane reagent

Answer 3

H2/Pt

Question 4

Alkene to dihaloalkane

Answer 4

X2

Question 5

Alkane to Haloalkane

Answer 5

HX

Question 6

Markovinkovs rule:

Answer 6

Rich gets richer. Two products formed with unsymmetrically substituted alkene.

Question 7

Alkene to alcohol

Answer 7

H+ followed by H2O

Question 8

Alkene to alkane with C-OR

Answer 8

H+/ROH

Question 9

Alcohol to Alkene

Answer 9

Conc. H2SO4

Question 10

Haloalkane to alkene

Answer 10

KOH in ethanol

Question 11

Alkenes are usually prepared via ___ reactions.

Answer 11

Elimination.

Question 12

Acid catalysed dehydration (removal of H2O)

Answer 12

Reagent: conc. H2SO4

Question 13

Base promoted dehydrohalogenation (Removal of HX)

Answer 13

Reagent: KOH or NaOH in ethanol

Question 14

Symmetrical alkenes:

Answer 14

Only one product

Question 15

Double bond of an alkene acts as:

Answer 15

A nucleophile

Question 16

Hydrogrenation: (+H2)

Answer 16

Also called a reduction

Question 17

In halogenation, the halogen acts as an _____.

Answer 17

Electrophile. Then the halide ION reacts as the nucleophile. Trans product is always formed.

Question 18

The more stable carbocation will be

____

Answer 18

more produced.