Question

PLEASE ANSWER IN DETAIL!!!​

Answer 1

☆Isomers:

Those compounds which have same molecular formula but differ in structure are called as structural isomers/ isomers.

See the attached image for structures.

(a) Molecular formula is different.

--- $\rm CH_3O_2N \: and \: CH_3O_3N$

--- Not isomers.

(b) They are functional group isomers.

• molecular formula same.
• one is cyanide other is amine.

--- Isomers☆

(c) are identical compounds

• after seeing the image, we can see they have same naming, just placed oppositely.
• 1-methoxy ethane.

(d) again molecular formula is diff.

--- not isomers.

☆☆ b is correct.

Good luck!