Give reason for the following observations: (a) The element carbon forms a very large number of compounds. (b) Air holes of a gas burner have to be adjusted when the heated vessels get blackened by the flame. (c) Use of synthetic detergents causes pollution of water.
a Carbon forms large number of compounds since carbon is small in size and can form stable covalent bonds catenation and it shows tetravalency. b Air holes of gas burner are made open adjusted so that air can pass through which is needed for complete combustion so that heated vessels do not get blackened. c Some synthetic detergents are non-biodegradable therefore cause pollution of water.