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How to Draw Mechanisms

Arrange the f...

Question

Arrange the following molecules in the increasing order of $σ$ to $π$ bond ratio :

(2) < (3) < (4) < (1)

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(2) < (4) < (3) < (1)

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(3) < (2) < (1) < (4)

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(2) < (3) < (1) < (4)

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Solution

The correct option is A (3) < (2) < (1) < (4)
Each double bond contains 1 $σ$ bond and 1 $π$ bond.

Note: In each structure, $C - H$ , $C - C$ and $C = C$ contributes to the $σ$ bond and $π$ bond is only contributed by the $C = C$ bond.

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\int {\sqrt{2 x^{2} - 3 x + 1}}_{d x}

\frac{\frac{1}{3} + \frac{3}{4} (\frac{2}{5} - \frac{1}{3})}{1 \frac{2}{3} o f \frac{3}{4} - \frac{1}{4} o f \frac{4}{5}}

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