Chapter 4: Carbon and Its Compounds

Solution: The structural isomers of pentane are as follows:

n-pentane

2-methylbutane

2, 2-dimethylpropane

2-methylbutane

Solution: Two properties of carbon which lead to the huge number of carbon compounds we see around us are as given below:

• Carbon has six valence electrons which is actually a high number of valency.
• Covalent bonding happens easily with carbon atoms and numerous others, such as oxygen, chlorine, nitrogen, sulphur, hydrogen, etc.

Solution: The formula and electron dot structure of cyclopentane is as given below:

Solution: i)

ii)

iii)

iv)

• 1. Bromoethane
  2. Methanal or Formaldehyde
  3. 1 – Hexyne