| I. Heptane |
| II. Octane |
| III. Nonane |
| IV. Decane |
A) IV>II>III>I
B) IV>III>I>II
C) I>II>IV>III
D) II>III>I>IV
Correct Answer: A
Solution :
The melting point of even number of\[C-\] atom is greater than the next lower and next higher C atom (because of the alternation effect) Hence, \[{{C}_{10}}>{{C}_{8}}>{{C}_{9}}>{{C}_{7}}\]
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