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NCERT Class XI Chemistry Hydrocarbons Solutions

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Question : 14 of 25
Marks: +1, -0
In the alkane
H3C−CH2−C(CH3)2−CH2−CH(CH3)2\mathrm{H_3C - CH_2 - C(CH_3)_2 - CH_2 - CH(CH_3)_2}
, identify 1°, 2°, 3° carbon atoms and give the number of H atoms bonded to each one of these.
Solution:  
H3C1∘− CH22∘− C4∘∣CH31∘∣CH31∘− CH22∘− CH3∘∣CH31∘− CH31∘\underset{1^{\circ}}{\mathrm{H_3C}} -\, \underset{2^{\circ}}{\mathrm{CH_2}} -\, \overset{\overset{1^{\circ}}{\mathrm{CH_3}}}{\overset{\vert}{\underset{\overset{1^{\circ}}{\mathrm{CH_3}}}{\underset{\vert}{\mathrm{C}^{4^{\circ}}}}}} -\, \underset{2^{\circ}}{\mathrm{CH_2}} -\, \overset{\overset{1^{\circ}}{\mathrm{CH_3}}}{\overset{\vert}{\mathrm{CH}^{3^{\circ}}}} -\, \underset{1^{\circ}}{\mathrm{CH_3}}
15 H attached to five 1° carbon. 4 H attached to two 2° carbon. 1 H attached to one 3° carbon.
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