Page 1 - Microsoft Word - Home assignments-haloalkanes and haloarenes

1. Write the IUPAC names of the following
(i) CH3 CH2 C (CH3)2 CH2 I (II) CH3 CH = (CCl) CH2 CH (CH2)2
2. Arrange the following in order of reacting towards SN reaction.
(i) 2 -bromo – 2 – methyl butane, 1 – bromopentene, 2-bromopentare
(ii) 1-bromo-3-methy butene, 2-bromo-2-methybutane, 1-bromo-2 methyl-butene.
3. Convert the following :-
(i) Ethanol to but -1-yne
(ii) Propene to propyne
(iii) Benzene to Biphenyl
4. What happens when
(a) 3-butyl chloride is treated with alcoholic KOH.
(b) Bromobenzene is treated with mg in presence of dry ether.
(c) Ethyl chloride is treated with aq. KOH
(d) Methyl bromide is treated with Na in presence of dry ether.
(e) Alkyl halides, though polar, are immiscible with water.
(f) Grignard reagents should be prepared under auhydrous conditions.
(g) Prepare is treated with HBr in presence of peroxide?
(h) Benzene is treated with methyl chloride in presence of Alcl3.
(i) Cyclohexanol is treated with Socl2.
(j) Ethyl bromide is treated with not in a acetone.
(k) Chloro bezene is treated with NaoH at 623k & high pressure.
5. Complete the following
alc.KOH
Br
alc.KOH

B
(a) CH  CH CH  CH   
C
A
2
3
2
3
|
Br

KCN
SoCl
(b) CH CH OH A 
B
2
3
2
AgCN
Pcl
(c) CH CH CH 3  A 
B
5
3
|
OH
NaOH
conc.HNO
(d)  A 
B
3
conc.H 2 SO 4 
2 H O
dry

B
(e) Br Mg  A 
ether
6. The treatment of alkyl chlorides with Ag-KOH leads to the formation of alcohols, but in the
presence of alc. KD4, alkenes are major products explain.
7. Primary alkyl halide C4H9 Br
a. Reacted with alc. KOH to give compound
b. Which is an isomer of (a) when (a)is reacted with Na metal if gives compound.
c. C8H8 which is different from the compound formed when n-butyl bromide is reacted
with Na. Give the structure of (a) & write all the reactions.