Question 1
How do you account for the formation of ethane during chlorination of methane?

Question 2

Write IUPAC names of the following compounds :

Question 3
For the following compounds, write structural formulas and IUPAC names for all possible isomers having the number of double or triple bond as indicated :
(a) C₄H₈ (one double bond)
(b) C₅H₈ (one triple bond)

Question 4
Write IUPAC names of the products obtained by the ozonolysis of the following compounds:
(i) Pent-2-ene
(ii) 3,4-Dimethyl-hept-3-ene
(iii) 2-Ethylbut-1-ene
(iv) 1-Phenylbut-1-ene

Question 7
Propanal and pentan-3-one are the ozonolysis products of an alkene? What is the structural formula of the alkene?

Question 8
Write chemical equations for combustion reaction of the following hydrocarbons:
(i) Butane   
(ii) Pentene
(iii) Hexyne
(iv) Toluene

Question 9
Draw the cis and trans structures of hex-2-ene. Which isomer will have higher b.p. and why?

Question 10
Why is benzene extra ordinarily stable though it contains three doublebonds?

Question 11
What are the necessary conditions for any system to be aromatic?

Question 12
Explain why the following systems are not aromatic?

Question 13
How will you convert benzene into
(i) p - nitrobromobenzene
(ii) m - nitrochlorobenzene
(iii) p - nitrotoluene
(iv) acetophenone?

Question 15
What effect does branching of an alkane chain has on its boiling point?

Question 17
Write down the products of ozonolysis of 1,2-dimethylbenzene (o-xylene). How does the result support Kekule structure for benzene?

Question 19
Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitutions with difficulty?

Question 20
How would you convert the following compounds into benzene?
(i) Ethyne         (ii) Ethene          (iii) Hexane

Question 23
Out of benzene, m-dinitrobenzene and toluene which will undergo nitration most easily and why?

Question 25
Why is Wurtz reaction not preferred for the preparation of alkanes containing odd number of carbon atoms? Illustrate your answer by taking one example.