Nature of inductive effect, resonance and hyperconjugation

1. A.
   (I) and (II)
2. B.
   (II) and (III)
3. C.
   (III) and (IV)
4. D.
   (I) and (IV)

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1. A.
   $(A) - (IV), (B) - (III), (C) - (I)$
2. B.
   $(A) - (II), (B) - (IV), (C) - (I)$
3. C.
   $(A) - (I), (B) - (II), (C) - (IV)$
4. D.
   $(A) - (III), (B) - (IV), (C) - (I)$

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1. A.
   Hyperconjugation is a temporary electronic effect.
2. B.
   -CN group show positive resonance effect.
3. C.
   The effect of hyperconjugation is usually stronger than the inductive effect.
4. D.
   The resonance hybrid is less stable than any of the resonance structures.

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1. A.
   Inductive effect
2. B.
   Resonance effect
3. C.
   Electromeric effect
4. D.
   Hyperconjugation

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