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QUESTION 3 The following questions are based on the molecules A and B below: Milano B с HC OH A -NHO D Molecule A Molecule B a) Following questions are related in identifying functional groups. CIRCLE AND LABEL in the structures of the molecules given. 0 IDENTIFY TWO the functional groups that are common, (exist in BOTH MOLECULES), in the molecules of A and B. (ANY WRONG ANSWER WILL GET PENALISED) (2 marks) B с H,00 HC OH Yritage NH A NH Molecule A Molecule B Identify the functional groups that ONLY exist in molecule A only but not in B. (ANY WRONG ANSWER WILL GET PENALISED) marks) [4 max Molecule A HI) Identify the functional groups that ONLY exist in molecule B only but not in A (ANY WRONG ANSWER WILL GET PENALISED) (2 marks) Molecule B iii) In the molecule A mark with for the chiral centre(s) (4 marks)
ii) Identify the functional groups that ONLY exist in molecule B only but not in A (ANY WRONG ANSWER WILL GET PENAUSED) (2 marks) Molecule B lii) In the molecule A mark with for the chiral centres) (4 marks) mihar Molecule A In the molecule A, CIRCLE & LABEL, part of the molecule A able to do ELECTROPHILIC SUBSTITUTION and ELECTROPHILIC ADDITION for the chiral centre(s) (2 marks) that Molecule A b) Fill in the table according to the properties of carbons A, B, C, D, x, y and zin molecules A and B respectively Carbon(s)-ANWERS Bond angle 109.59 120° 180° O hybridisation Sp Sp Spl Geometrical shapes linear tetrahedral Trigonal planar
QUESTION 4 a) State if 2,2,4-trimethylpentane has a higher or lower boiling point than that of octane. Explain your answer. (3 marks) b) Draw and label two isomers with molecular formula C.H.O, to illustrate functional group (4 marks) END OF QUESTION....SO MARKS