Make 2 homologues and 2 isomers and name them for 2,2-dimethylpentane?

CH3-C (CH3) 2-CH2-CH3 – 2,2-dimethylbutane
Homologues: CH3-C (CH3) 2-CH3 dimethylpropane,
CH3-C (CH3) 2 – CH2 -CH2-CH3 2,2-dimethylpentane
Isomers: CH3-CH (CH3) – CH (CH3) – CH3 2,3-dimethylbutane
CH3 -CH2 -CH2-CH2-CH2-CH3 hexane

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