A.CH3CHCl(CH2)3COOH B.CH3CH2CHCl(CH2)3COOH C.CH3(CH2)3CHClCOOH D.CH3(CH2)3CCl2COOH
A.CH4 B.CF4 C.CCl4 D.CBr4
A.C7H16 B.C6H14 C.C5H10 D.C3H8