Which of the given compounds are aromatic (Huckel rule)

1. A.
2. B.
3. C.
4. D.

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1. A.
   (A) and (B) only
2. B.
   (B) and (C) only
3. C.
   (B), (C) and (D) only
4. D.
   (A), (B) and (C) only

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1. A.
2. B.
3. C.
4. D.

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1. A.
2. B.
3. C.
4. D.

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1. A.
   A, B, C and D
2. B.
   Only A and B
3. C.
   Only A and C
4. D.
   Only B, C and D

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1. A.
2. B.
3. C.
4. D.

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1. A.
   Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$.
2. B.
   Both $A$ and $R$ are correct but $R$ is NOT the correct explanation of $A$.
3. C.
   $A$ is correct but $R$ is not correct.
4. D.
   $A$ is not correct but $R$ is correct.

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1. A.
   B and D only
2. B.
   A and C only
3. C.
   A and B only
4. D.
   C and D only

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1. A.
   e, g aromatic and $a,b,c,d,f,h$ not aromatic
2. B.
   b, e, f, g aromatic and a, c, d, h not aromatic
3. C.
   a, b, c, d aromatic and e, f, g, h not aromatic
4. D.
   a, c, d, e, h aromatic and b, f, g not aromatic

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1. A.
   6
2. B.
   4
3. C.
   3
4. D.
   5

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