Organic Chemistry

01.What is the formal charge on the O atom in H 3 O ion? a.1 b.2 c.3 d.4 02.Arrange the following bonds from lowest to highest polarity: C-F, C- C, and C-Cl. a.C-Cl<C-C<C-C-F b.C-F<C-Cl<C-C c.C-C<C-Cl<C-F d.They have the same polarity. 03.According to VSEPR model, what is your prediction the arrangement of electron pairs for CH 3 - ? a.linear b.tetrahedral c.bent d.trigonal 04.Which of the following react most readily with Br 2 ? a.Straight chain alkanes b.Branched alkanes c.Alkenes d.Aromatic Compounds 05.Oxidation of which of the following compounds can lead to an aldehyde? a.primary alcohol b.secondary alcohol c.tertiary alcohol d.ether 06.Hydrolysis of an ester leads to two compounds. Which of the following pairs compounds is form from such hydrolysis? a.An alcohol and an aldehyde b.Two alcohols c.An alcohol and a carboxylic acid d.A ketone and a carboxylic acid 07.Which of the following is the best definition of the chemical nature soap? a.A soap is a very long molecule. b.A soap is a long chain carboxylic acid. c.A soap is an ester of glycerol and a long chain carboxylic acid. d.A soap is a salt of a long chain carboxylic acid. 08.The reaction of methane with chlorine to form methyl chloride follows a free radical chain reaction mechanism. The first step in this reaction mechanism is a.abstraction of a hydrogen from a methane molecule by a chlorine molecule. b.homolytic splitting of the chlorine molecule into chlorine atoms. c.photochemical splitting of one of the C-H bonds in methane. d.reaction of a hydrogen from methane with a chlorine molecule to form HCl which then catalyzes then catalyzes the reaction. 09.To form an amide, you would best advised to react which of the following? (1)CH 3 COOH, (2)CH 3 OH (3)CH 3 CHO (4)CH 3 CONH 2 (5)CH 3 NH 2 a.1 with 2 b.1 with 3 c.1 with 4 d.1 with 5 10.When benzene reacts with chlorine, a(n) _________ reaction occurs whereas when cyclohexene reacts with chlorine a(n) __________ reaction occurs. a.oxidation, reduction b.addition, oxidation c.substitution, oxidation d.substitution, addition 11.Which conditions will convert pentanoic acid to pentanoyl chloride? a.HCl b.NaCl c.SOCl 2 d.LiAlH 4 followed by HCl 12.Which compounds will yield benzoic acid when hydrolysed? I) Benzyl Ethanoate II)Benzamide III) Phenyl Ethanoate IV)Methyl Benzoate a.I,II b.III,IV c.I,III d.II,IV

Organic Chemistry

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