An organic compound having molecular mass 60 is found to contain C = 20%, H = 6.67% and N = 46.67% while rest is oxygen. On heating, it gives NH3 along with a solid residue. The solid residue give violet colour with alkaline copper sulphate solution. The compound is

• CH₃NCO

• CH₃CONH₂

• (NH₂)₂CO

• CH₃CH₂CONH₂

Which characteristic is common to different isomers of a compound?

Name three alkanes which do not show chain isomerism.

Name the types of structural isomerism shown by alkanes.

Name the four main types of structural isomerism. 

Write the three possible open chains of five carbon atoms

What types of structural isomerism is shown by the following pairs of organic compounds ?

Draw the structure of the tautomer of phenol and write its IUPAC name.

Define ring - chain isomerism. Given one example.?

Write the metamer of diethyl ether ?