Answer the following:
Balu is provided with an hydrocarbon (P) has the molecular formula \(C_{10}H_{22}\). A hydrocarbon (Q) has two carbon atoms less than (P) and belong to the same homologous series. A hydrocarbon (R) has two carbon atoms more than (P) and belong to the same homologous series.
a. What is the molecular formula of (Q)?
b. To which homologous series do the compound (P), (Q) and (R) belong?
c. What is the molecular formula of (R)?
d. Identify the correct statement about compounds (P), (Q) and (R).