Write down the structure of the following compounds:
(i) Pent -3 - en - 1 - yne
(ii) 3 - methylpenta - 1 - 4 - diyne
(iii) 3 - (2 - methyl propyl)hept - 1 - en - 4 - yne
(iv) 3 - ethylpenta - 1,3 diene
(v) 5 - ethylnylhepta - 1,3,6 - triene
(vi) 4 - ethyl - 4 - methylhex - 1 - yne

Explanation

(i) `Hoverset(1)(C)-=overset(2)(C)-overset(3)(CH)=overset(4)(C)H-overset(5)(C)H_(3)`
(ii) `Hoverset(1)(C)-=overset(2)(C)-overset(3)(CH)(CH_(3))overset(4)(C)-=overset(5)(C)H`
(iii)
(iv) `overset(1)(C)H_(2)=overset(2)(C)H-overset(3)underset(CH_(2)CH_(3))underset(|)(C)=overset(4)(C)H-overset(5)(C)H_(3)`
(v) `overset(1)(C)H_(2)=overset(2)(C)H-overset(3)(C)H=overset(4)(C)H-overset(5)underset(C-=CH)underset(|)(C)-overset(6)(C)H=overset(7)(C)H_(2)`
(vi) `Hoverset(1)(C)-=overset(2)(C)-overset(3)(C)H_(2)-overset(CH_(2)CH_(3))overset(|)underset(CH_(3))underset(|)(""^4C)-""^5CH_(2)-overset(6)(C)H_(3)`