A) 2,2-dimethyl propane
B) Pentane
C) 2-methyl butane
D) 2,2-dimethyl butane
Correct Answer: D
Solution :
2, 2-dimethyl butane is 6-carbon hydrocarbon \[({{C}_{6}}{{H}_{14}})\]. \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\] Rest all are the chain isomers of pentane. \[({{C}_{5}}{{H}_{12}})\] \[\underset{\begin{smallmatrix} \text{2,}\,\text{2-dimethyl}\,\text{propane} \\ \text{(neo-pentane)} \end{smallmatrix}}{\mathop{{{H}_{3}}C-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,}}\,-C{{H}_{3}}}}\,\] \[\underset{\begin{smallmatrix} \text{2-methylbutane} \\ \text{(iso-pentane)} \end{smallmatrix}}{\mathop{{{H}_{3}}C-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}}}\,\] \[\underset{n-\text{pentane}}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}}}\,\]
You need to login to perform this action.
You will be redirected in
3 sec
