A) cyclo hexane
B) 3, 3-dimethyl pentane
C) 2, 2, 3-trimethyl pentane
D) \[n-\] heptane
Correct Answer: C
Solution :
Structure of cyclohexane is It contains \[\text{6}\,\,\text{C}-\text{C}\]bond and \[12\,\text{C}-\text{H}\] bonds. Structure of \[3,3-\]dimehyl pentane, \[H-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{H}}}\,}}}\,-H\] It contains \[\text{6}\,\,\text{C}-\text{C}\]bond and \[\text{16}\,\,C-H\] bonds. Structure of 2,\[3,3-\]trimethyl pentane. It contains \[7C-C\]bond and \[18\,C-H\]bonds. So, it is the answer. Structure of \[n-\]heptane \[H-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{H}}}\,}}}\,-H\] It contains \[6\,\,C-C\]bonds and element having atomic number 24 is:You need to login to perform this action.
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