Problem 4
Write IUPAC names of the products obtained by the ozonolysis of the following compounds : (i) \(\quad\) Pent-2-ene (ii) 3,4 -Dimethylhept-3-ene (iii) \(\quad\) 2-Ethylbut-1-ene (iv) \(\quad\) 1-Phenylbut- 1 -ene
Problem 5
An alkene 'A' on ozonolysis gives a mixture of ethanal and pentan-3one. Write structure and IUPAC name of 'A'.
Problem 6
An alkene 'A' contains three \(\mathrm{C}-\mathrm{C}\), eight \(\mathrm{C}-\mathrm{H} \sigma\) bonds and one \(\mathrm{C}-\mathrm{C}\) \(\pi\) bond. 'A' on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of 'A'.
Problem 7
Propanal and pentan-3-one are the ozonolysis products of an alkene? What is the structural formula of the alkene?
Problem 8
Write chemical equations for combustion reaction of the following hydrocarbons: (i) Butane (ii) \(\quad\) Pentene (iii) Hexyne (iv) Toluene
Problem 9
Draw the cis and trans structures of hex-2-ene. Which isomer will have higher b.p. and why?
Problem 10
Why is benzene extra ordinarily stable though it contains three double bonds?
Problem 11
What are the necessary conditions for any system to be aromatic?
Problem 13
How will you convert benzene into (i) \(\quad p\) -nitrobromobenzene (ii) \(m\) - nitrochlorobenzene (iii) \(p-\) nitrotoluene (iv) acetophenone?
Problem 14
In the alkane \(\mathrm{H}_{3} \mathrm{C}-\mathrm{CH}_{2}-\mathrm{C}\left(\mathrm{CH}_{3}\right)_{2}-\mathrm{CH}_{2}-\mathrm{CH}\left(\mathrm{CH}_{3}\right)_{2}\), identify \(1^{\circ}, 2^{\circ}, 3^{\circ}\) carbon atoms and give the number of \(\mathrm{H}\) atoms bonded to each one of these.
