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Dear students, hope you all are fine. As I have always told, your learning process be<strong>com</strong>es abortive if it is not<br />
ac<strong>com</strong>panied with practice. Make regular habit of practicing problems. This article ‘Problems on Hydrocarbons’ will<br />
help you for that. Always set timer before solving a problem, then only you can get fruitful results. Regards your<br />
very own.<br />
*Arunava Sarkar<br />
1. Give the number of isomers including stereoisomers<br />
obtained after the monochlorination of isopentane.<br />
(a) 2 (b) 3<br />
(c) 4<br />
(d) None of these<br />
2. Which one is dehydrohalogenated most easily?<br />
4.<br />
(a)<br />
Br<br />
HBr (1 mole)<br />
(b)<br />
Br<br />
(I)<br />
(II)<br />
(c)<br />
(d) None of these<br />
Cl<br />
(III)<br />
(IV)<br />
5.<br />
(a) I<br />
(c) III<br />
(b) II<br />
(d) IV<br />
Identify the major product.<br />
(a) CH 2 CH 2 NH 2<br />
3. +<br />
O<br />
OH Br 2<br />
NaHCO 3<br />
XX ; = ?<br />
(b) CHCHNH 2<br />
(c) CH 2 CH 2 NO 2<br />
(d) None of these<br />
(a)<br />
(b)<br />
6.<br />
(a)<br />
O<br />
(b)<br />
(c)<br />
Br<br />
C<br />
(d)<br />
O<br />
(c)<br />
O<br />
(d) None of these<br />
*Institute of <strong>Chemistry</strong> (IOC)- Asansol, Durgapur, Dhanbad, Burdwan, Kolkata, Jamshedpur, Bokaro, Patna<br />
CHEMISTRY TODAY | APRIL ‘17 65
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