Cyclic hydrocarbon $^{'} A^{'}$ has all the carbon and hydrogen atoms in a single plane. All the carbon carbon bonds have the same length, less than $1.54 A^{\circ}$ , but more than $1.34 A^{\circ}$ . The bond angle will be

109^{\circ} 28^{'}

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100^{\circ}

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180^{\circ}

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120^{\circ}

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Solution

The correct option is D $120^{\circ}$
All the properties mentioned in the question suggest that is a benzene molecule. Since in benzene all carbons are $s p^{2} -$ hybridized. therefore. $C - C - C angle is 120^{\circ} .$

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Similar questions

1.54 o A

1.34 o A

C - C

On catalytic hydrogenation ethylene gives ethane. During this reaction

hybridization of carbon atoms changes from SP² to SP³

bond angle decreases from 120 to 109.5

C-C Bond length increases from 1.34 A° to 1.54 A°

all of these

Why in ethene angle between carbon hydrogen bonds is slightly less than angle between carbon hydrogen and carbon carbon Bond?

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