3. Draw all the possible structures for the compounds having the following formulas. Give their systematic names.
(a)C3H8
(b)C3H4
(c)C4H8
(d)C3H5Cl

4. Which of the following compounds are isomers of one another?
(a)CH3CH2CH2OH
(b)CH3CHClCH3
(c)CH3CH2CH3
(d)CH3COCH2CH3
(e)CH3CH2CH2Cl

5.Sketch the structure of each of the following molecules and indicate the hybridisation arouund each carbon.
(a)C2Cl4
(b)CBr4
(c)C2Cl2
(d)CH2Cl2
(e)C2F6

6. What is the systematic name of each of the following compounds?