Arrange the following alkanes in decreasing order of their heats of combustion (i) CH3−CH3|C|CH3−CH3(Neo- pentane) (ii) CH3−CH|CH3(Iso - pentane) (iii)CH3−CH2−CH2−CH2−CH3(n -pentane)
A
(i) > (ii) > (iii)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
(iii) > (i) > (ii)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
(iii) > (ii) > (i)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(i) > (iii) > (ii)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is D (i) > (ii) > (iii) More stable compound release less amount of heat of combustion less stable compound give more amount of heat of combustion. Hence order is i>ii>iii