Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 3 PCB MCQ (Single Correct)

Which of the following statements is correct about resonance?

A
Resonating structures are more stable than hybrid-resonance.
B
Equivalent resonating structures do not contribute equally.
C
Resonance affects bond lengths but not bond angles.
D
Resonating structures indicate that the molecule has no real existence.

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The correct answer is:
C

Statement is correct for resonance because resonance affects bond lengths but not bond angles while , and are false statements. Due to resonance, delocalisation of electrons in every bond which is participating in resonance attains partial double character. Thus, their bond length decreases but causes no effect on bond angle.

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