What will be the formula and electron dot structure of cyclopentane?

Draw the structures for the following.

(i) Ethanoic acid

(ii) Bromopentane*

(iii) Butanone

(iv) Hexanal

*Are structural isomers possible for Bromopentane?

How is the conversion of ethanol to ethanoic acid an oxidation reaction?

A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?