Match organic compounds: Isobutane=(CH₃)₂CHCH₃, n-Icosane=CH₃(CH₂)₁₈CH₃, n-Butane=CH₃(CH₂)₂CH₃, n-Undecane=CH₃(CH₂)₉CH₃

Match elements: Radium=88, Titanium=22, Rhodium=45, Silicon=14

Correct: (a) Chemical potential is logarithmic for dilute solutions (d) In ideal solutions both obey Raoult's law