1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

Given below are two statements:

Statement I : In an organic compound, when inductive and electromeric effects operate in opposite directions, the inductive effect predominates.

Statement II : Hyperconjugation is observed in o-xylene.

In the light of the above statements, choose the correct answer from the options given below :

A
Statement-I is true but Statement-II is false.
B
Statement-I is false but Statement-II is true.
C
Both Statement-I and Statement-II are true.
D
Both Statement-I and Statement-II are false.
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1

The number of $$\sigma$$ bonds, $$\pi$$ bonds and lone pair of electrons in pyridine, respectively are:

A
12, 3, 0
B
11, 3, 1
C
12, 2, 1
D
11, 2, 0
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1

In Lassaigne's extract of an organic compound, both nitrogen and sulphur are present, which gives blood red colour with $$\mathrm{Fe}^{3+}$$ due to the formation of-

A
NaSCN
B
$$\left[\mathrm{Fe}(\mathrm{CN})_{5} \mathrm{NOS}\right]^{4-}$$
C
$$[\mathrm{Fe}(\mathrm{SCN})]^{2+}$$
D
$$\mathrm{Fe}_{4}\left[\mathrm{Fe}\left(\mathrm{CN}_{6}\right)\right]_{3} \cdot \mathrm{xH}_{2} \mathrm{O}$$
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1

Consider the following compounds/species:

NEET 2023 Chemistry - Some Basic Concepts of Organic Chemistry Question 5 English

The number of compounds/species which obey Huckel's rule is ___________.

A
6
B
2
C
5
D
4
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