Chemistry - GOC Question with Solution | TestHub

ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB
ChemistryMediumsingle choice

These questions contains, Statement-I (assertion) and Statement-II (reason).

Statement-I : Buta-1,3-diene is less stable than Penta-1, 4-diene.

Because

Statement-II : Buta-1,3-diene has greater number of resonating structures and delocalised electron cloud,

Options:

Answer:
D
Solution:

Explain Question:

Asking about the correct relationship between A & R regarding dienes.

Concept:  

This question is based on resonance effect.

Solution:  

Buta-1,3-diene is more stable than penta-1,4-diene due to resonance effect. Resonance effect is the stabilizing effect because π–electron cloud delocalize over more atoms.

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Hence statement-I is false but statement-II is true.

Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
2mℹ️ Source: QB

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