(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (ii)
(d) (iii) and (iv)
Answer: (c) (i) and (ii)
Explanation: n−butane and iso−butane are the correct structural isomers of butane.
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (ii)
(d) (iii) and (iv)
Answer: (c) (i) and (ii)
Explanation: n−butane and iso−butane are the correct structural isomers of butane.