Lakhmir Singh and Manjit Kaur Solutions for Chapter: Carbon And its Compounds, Exercise 9: Multiple Choice Questions (MCQs)

Which of the following burns by producing a yellow, luminous flame?

The molecular formula of an organic compound is ${\mathrm{C}}_{48}{\mathrm{H}}_{94}$. This compound belongs to the homologous series of:

One of the following molecular formulas represents a ketone. This formula is:

Which one of the following is not a fossil fuel?

Butanone is a four-carbon compound having the functional group:

The molecular formula of the third member of the homologous series of ketones is:

The functional group present in propanal is:

An organic compound having the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O}$ can exist in the form of two isomers. A and B have different functional groups. The isomer A is a liquid which is used as a solvent for nail polish. The isomer B is also a liquid. An aqueous solution of one of the lower homologues of B is used for preserving biological specimens in the laboratory.

a) What is compound A?

b) Write the electron dot structure of A?

c) What is compound B?

d) Write the electron dot structure of B?

e) Name the lower homologue of compound B which is used in preserving biological specimens.