Write IUPAC names of the following compounds.
(i) (CH3)3 CCH2C(CH3)3
(ii) (CH3)2C(C2H5)2
(iii) Tetra-tert-butylmethane.
The expanded structures of these alkanes are :

(iii) 3, 3-Di-tert-butyl-2, 2, 4, 4- tetramethylpentane
or 3, 3-Bis (1, 1- dimethylethyl) -2, 2,4,4- tetramethylpentane