19
MCQ (Multiple Correct Answer)
Which of the following pairs are position isomers?
A
I and II
B
II and III
C
II and IV
D
III and IV
20
MCQ (Multiple Correct Answer)
Which of the following pairs are not functional group isomers?
A
II and III
B
II and IV
C
I and IV
D
I and II
21
MCQ (Multiple Correct Answer)
Nucleophile is a species that should have
A
a pair of electrons to donate
B
positive charge
C
negative charge
D
electron deficient species
22
MCQ (Multiple Correct Answer)
Hyperconjugation involves delocalisation of .......... .
A
electrons of carbon-hydrogen $\sigma$ bond of an alkyl group directly attached to an atom of unsaturated system.
B
electrons of carbon-hydrogen $\sigma$ bond of alkyl group directly attached to the positively charged carbon atom.
C
$\pi$-electrons of carbon-carbon bond
D
lone pair of electrons.
23
Subjective
Which of the above compounds form pairs of metamers?
Explanation
Metamerism arises due to different alkyl chains on either side of the functional group in the molecule. In the given structures V and VI or VI and VII form a pair of metamers because they differ in carbon atoms on the either side of the functional group, i.e., O-atom.
