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MCQ-26
Which one shows the highest boiling point
A. n-Propane
B. n-Pentane
C. Iso-pentane
D. Iso-butane

Answer: B

MCQ-27
Force of attraction present between H₂O and H₂
A. Dipole-dipole
B. Dipole-induced dipole
C. Hydrogen bonding
D. London dispersion forces

Answer: B

MCQ-28
London dispersion forces are present between the molecules of
A. H₂O
B. NH₃
C. CH₄
D. All of the above

Answer: D

MCQ 29
The highest boiling point among the following
A. NH₃
B. CH₄
C. H₂O
D. HF

Answer: C

MCQ-30
The stronger hydrogen bond is present in
A. HF
B. H₂O
C. NH₃
D. CH₄

Answer: A