Chemistry 9701/13 — May/June 2018
Cambridge AS Level · Multiple Choice (AS Level) · answer key with instant marking and worked solutions
40
questions
40
marks
60
minutes
Topics Introduction to Organic Chemistry · Atoms, Molecules and Stoichiometry · Chemical Bonding · Equilibria · Halogen Compounds · Carbonyl Compounds · +16 more
Tap an option under each question to check it — your score builds as you go.
Q11MChemical BondingFree sample
Why is the boiling point of ammonia, , higher than the boiling point of phosphine, ?
Options
A Ammonia molecules are polar; phosphine molecules are not.
B Ammonia molecules have significant hydrogen bonding; phosphine molecules do not.
C N–H covalent bonds are stronger than P–H covalent bonds.
D There is one lone pair in each ammonia molecule but no lone pair in each phosphine molecule.
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