Give IUPAC names of (CH_(3))_(3)C CH(C_(2)H_(5))_(2). Why 3-methyl-4,4 dimethyl pentane is not true ?

Give IUPAC names of (CH_(3))_(3)C CH(C_(2)H_(5))_(2). Why 3-methyl-4,4

1.	Give IUPAC names of (CH_(3))_(3)C CH(C_(2)H_(5))_(2). Why 3-methyl-4,4 dimethyl pentane is not true ?
Answer» Solution :In this NAME substitution ORDER is t 3,4 and 4 so in its true name 3-ethyl-2,2 dimethyl PENTANE is possible but above this PREFERENCE is not possible.