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Match the List-I with List-II. List-I (a) [structure] (b) [structure] (c) [structure] (d) [structure] List-II (i) Spiro compound (ii) Aromatic compound (iii) Non-planar Heterocyclic compound (iv) Bicyclo compound

1. (a) – (II), (b) – (I), (c) – (IV), (d) – (III)
2. (a) – (IV), (b) – (III), (c) – (I), (d) – (II)
3. (a) – (III), (b) – (IV), (c) – (I), (d) – (II)
4. (a) – (IV), (b) – (III), (c) – (II), (d) – (I)

Correct answer: (a) – (IV), (b) – (III), (c) – (I), (d) – (II)

Solution

The correct option accurately matches each structure with its corresponding classification: (a) is a bicyclo compound due to its two fused rings, (b) is a non-planar heterocyclic compound as it contains a heteroatom and is not flat, (c) is a spiro compound characterized by its unique spirocyclic structure, and (d) is an aromatic compound due to its cyclic structure and resonance stability.

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