JEE-MAINS / AIEEE / NEET--2020 (Chemistry organic)
ORGANIC CHEMISTRY
Tick the correct option------
1. Which of the following will have meso-isomer also ?
(a) 2-Chlorobutane (b) 2-Hydroxy propanoic acid
(c) 2,3-Dichloropentane (d) 2,3-Dichlorobutane
2. Identify the correct IUPAC name.
(a) 2,2-Dimethyl-4-ethyl heptane.
(b) 5-Ethyl-2-methyl hexane.
(c) 1,3-Dimethyl butane.
(d) 3-Ethyl-1,1-dimethyl cyclohexane.
3. Among the butane conformers, which occur at energy minima on a graph of potential energy versus dihedral angle ?
(a) Gauche only (b) Gauche and anti
(c) Eclipsed and totally eclipsed
(d) Eclipsed only
One word answer for the following questions-----
4. Propene and propyne can be distinguished by ?
5.Name the reagent which does not react with both acetone and benzaldehyde ?
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