The number of carbon atoms in the organic compound named as 2, 2-dimethylpropane is:

49 The organic compound prepared by Wohler from an inorganic compound called ammonium cyanate was: 50 One of the following is not an allotrope of carbon. This is: 52 The pair of elements which exhibits the property of catenation is: 53 A saturated hydrocarbon has fifty hydrogen atoms in its molecule. The number of carbon atoms in its molecule will be: