Question

9. What is the difference in the molecular mass of any two adjacent homologues? What
is the difference in the number of atoms? [2]

10. Which functional group do you think can be present in organic compound C5H10O2?


11. Explain why ethene decolourises bromine water whereas ethane does not.

Answer 1

Wahi Jo aap Na Samajh sake

Answer 2

9.)

Molecular mass :

In term of molecular mass each successive member in a homologous series differ by molecular mass of 14

10.)

esters is the function group.

11.)

Bromine water decolourises unsaturated compounds.Ethene contains double bond and hence it is unsaturated.It reacts with Br to give colourless compound whereas ethane is saturated compound.