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Consider the following molecules A-O to answer questions 1-11: OH Molecule A Molecule B Molecule C H2N Molecule D Molecule E Molecule F OH Molecule G Molecule H Molecule I ū Molecule J Molecule K Molecule L HN Molecule M Molecule N Molecule o To open this im

Answer 1

Q8. Yes the molecule A has one stereocenter as shown below. To be a stereocenter the center has to be chiral, i.e it should have four different groups attached to that particular carbon. The center marked 1 is not a stereocenter as it contains two CH3 groups. stereocenter OH Molecule A

Molecule k rotating 180° clocwise through the axis Molecule K Molecule w Molecule X Molecule L O rotating 180° clocwise through the axis rotating 180° cloclwise through the axis - Molecule k Molecule Y Molecule W jogh rotating180° doclwise through the axis rotating 180° cloclwise through the axis O . Moldcule Z mrror image of molecule k So molecule Z is the enantiomer of K

Q10. The following molecule is a symmetric molecule as shown by the divider. The up down stereochemistry representation does not mean anything as the centers are not chiral. It contains four different sets of nonequivalent carbons marked 1, 2, 3, 4 and will show 4 different peaks. 22 / Q11. The peak at 2900 is for C-H stretching. The peak at 1250 cm is for C-O stretching for carboxylic acid. Peak at 1710 cm is for C=O stretching for carboxylic acid. Peak at 3000 cm is for -OH stretching of carboxylic acid. So the structure contains a carboxylic group and alkyl group. So the structure is A. OH Molecule A