Arrange the following alkanes in decreasing order of their heats of combustion:
$(i)$ $CH_3-C(CH_3)_2-CH_3$ (Neopentane)
$(ii)$ $CH_3-CH(CH_3)-CH_2-CH_3$ (Isopentane)
$(iii)$ $CH_3-CH_2-CH_2-CH_2-CH_3$ ($n$-pentane)
$(i)$ $CH_3-C(CH_3)_2-CH_3$ (Neopentane)
$(ii)$ $CH_3-CH(CH_3)-CH_2-CH_3$ (Isopentane)
$(iii)$ $CH_3-CH_2-CH_2-CH_2-CH_3$ ($n$-pentane)
- A$(i) > (ii) > (iii)$
- B$(iii) > (i) > (ii)$
- C$(iii) > (ii) > (i)$
- D$(i) > (iii) > (ii)$
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