Problem 12
Which of the following has zero dipole moment? (a) 1 -butene (b) cis-2-butene (c) trans-2-butene (d) 2 methyl-1-propene
Problem 14
The most stable conformation of ethylene glycol is (a) anti (b) gauche (c) fully eclipsed (d) partially eclipsed
Problem 15
The total number of isomers for \(\mathrm{C}_{4} \mathrm{H}_{8}\) are (a) 8 (b) 7 (c) 6 (d) 5
Problem 16
\(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{C} \equiv \mathrm{N}\) and \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{~N} \rightrightarrows \mathrm{C}\) are which type of isomers? (a) tautomerism (b) position (c) functional (d) linkage
Problem 19
The number of enantiomers of the compound \(\mathrm{CH}_{3} \mathrm{CHBrCHBrCOOH}\) is (a) 1 (b) 2 (c) 3 (d) 4
Problem 20
The IUPAC name of compoud (a) \(1,2,3\)-tricyanopropane (b) Propane-1, 2,3 -tricarbonitrile (c) 3 -cyanopentane- 1,5 -dinitrile (d) Propane-1, 2,3 -trinitrile.
Problem 21
Which of the following compounds will show metamerism? (a) \(\mathrm{CH}_{3}-\mathrm{O}-\mathrm{C}_{2} \mathrm{H}_{5}\) (b) \(\mathrm{CH}_{3}-\mathrm{O}-\mathrm{CH}_{3}\) (c) \(\mathrm{CH}_{3}-\mathrm{CO}-\mathrm{C}_{2} \mathrm{H}_{5}\) (d) \(\mathrm{C}_{2} \mathrm{H}_{5}-\mathrm{S}-\mathrm{C}_{2} \mathrm{H}_{5}\)
Problem 23
In the boat conformation of cyclohexane, the most destabilizing interaction is (a) eclipsing (b) flagpole-flagpole (c) 1,3 -diaxial (d) 1,3 -diequatorial
Problem 24
The most stable conformation of \(\mathrm{n}\)-butane is (a) eclipsed (b) gauche (c) anti-staggered (d) skew-boat
Problem 25
Tautomerism will be exhibited by (a) \(\mathrm{R}_{3} \mathrm{CNO}_{2}\) (b) \(\mathrm{RCH}_{2} \mathrm{NO}_{2}\) (c) \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) (d) \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CNO}\)
