The degree of unsaturation or index of hydrogen deficiency in the following is:
i) C6H14
ii) C4H6
iii) C6H6
0, 2, 4
1, 0, 2
4, 1, 0
2, 0, 4
D.U. in C6H14=(2nC+2)−nH2=14−142=0∘
D.U. in C4H6=10−62=2∘
D.U. in C6H6=14−62=4∘