What is the stereochemical relationship of the products

Reference no: EM13182495

1) The major mechanism by which five membered aromatic heterocycles react with electrophiles is:

A) nucleophilicaromaticsubstitution
B) electrophilic aromatic substitution
C) ionicaddition
D) free radical addition
E) oxidation-reduction

2) What is the stereochemical relationship of the products formed by reacting racemic lactic acid with (S)-1-phenylethylamine?

A) enantiomers
B) meso compounds
C) racemicmixture
D) diastereomers
E) geometric isomers

3) Which of the following reaction sequences will convert p-bromoaniline to p-bromobenzoic acid?

A) 1. NaNO2, HCl 2. CH3CO2H +
B) 1. NaNO2, HCl 2. Mg, ether 3. CO2, H3O
C) 1. CH3Cl, AlCl3 2. KMnO4 +
D) 1. HCl 2. CH3COCl 3. NaCN, H3O +
E) 1. NaNO2, HCl 2. KCN, Cu2CN2 3. H3O

Reference no: EM13182495

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