CHM 202 QUIZ

In the Lewis structure of methanol (CH3OH), how many lone pairs of electrons are present on the oxygen atom?

How many optical isomers does a compound with two chiral carbon atoms possess?

What is the product of the heterolytic cleavage of a covalent bond?

Which intermolecular force is the weakest and often disappears and reappears due to the movement of atoms?

What type of solvent can solvate both cations and anions?

Which of the following is a polar aprotic solvent?

How many chiral centre(s) are there in 1-bromo-1,2-dihydroxylpropane?

Which notation is used to designate the spatial arrangement of atoms in an optically active compound?

Which of the following molecules exhibits hydrogen bonding?

Alkanes can be prepared by the following methods except; (i) Dehydrohalogenation (ii) Hydration of alkenes (iii) Hydrogenation of unsaturated hydrocarbons (iv) Electrophilic addition reaction.

Give the total number of resonance canonical structures for methoxybenzene and the number of the canonical structures that are ionic;

Consider the above compound: How many chiral C-atoms are present; Indicate the specific configuartion of all C-atoms present and give the number of optically active isomers of the compound.

In an SN1 reaction between a tertiary alkyl halide and water, the rate-determining step involves:

The boiling point of a substance increases with the strength of the intermolecular forces between its molecules. Which of the following substances would be expected to have the highest boiling point?

In a nucleophilic substitution reaction, the nucleophile is a:

How many chiral carbons do glucose and fructose each have?

Consider the compound below having its C-atoms numbered 1 – 9. Indicate the chiral C-atom(s) in the molecule;

Which of the following statements about resonance is true?

Arrange the following in order of decreasing boiling point: HF; H2O; Hal

The following is/are correct for SN1 reaction mechanism except; (i) The geometry of the transition state (ii) It is favoured with primary alkyl halide (iii) The substrate and product are of opposite configuration (iv) The product are of the same geometry

Which alkyl halides(s) would undergo dehydrogenation to give the following pure alkene, methylenecyclohexane?

Arrange the following in decreasing order of acidity; Ethnic acid; dichloroethanoic acid; monochloroethanoic acid; and trichloroethanoic acid. Give reason for your answer.

Which of the following compounds undergoes racemization?

Why does NaCl dissolve readily in water but not in benzene?

What is the IUPAC name of the following compound: CH3CH2CH(CH3)CH2CH3?