(b) CH3 CH3 Br NaOCH3 80 °C

Following are the steps in the industrial synthesis of glycerin. NaOH, H₂O B (C₂H₂O) CH₂=CHCH, Propene Cl₂A (C₂H₂CI) heat C (C₂H,ClO₂) Ca(OH)2, D (C3H6O2) heat Cl₂, H₂O H₂O, HCI OH HOCH₂CHCH₂OH 1,2,3-Propanetriol (glycerol, glycerin)

Which atom is the most nucleophilic? C

Which has the greater polarizability? Explain.(a) Br- or I-       (b) CH2 = CH2 or CH3—CH3      (c) H2O or H2Se

(CH3)3COH = convert tocomplete structure

OTS OTS OTS OH NaOEt NaCN EtOH NaCN Hexan H₂SO4

The chemical reaction of convert Mg3N2 to MgO carrying out under High temperature True or false

← + 5 2 QT ΑΙ 1. SECTION A Answer BOTH questions in this section (Each question is worth 20 marks) Answer ALL parts of this question. (a) Compare the structure of the ß-lactam antibiotic A with antibiotic X shown in Figure Q1(a) in terms of how structural differences affect the following properties; (i) Spectrum of activity. (ii) Resistance to ẞ-Lactamases. (iii) Oral bioavailability. (3 marks) (3 marks) (3 marks) (b) HH H H ΗΝ Ξ S ΗΝ Ξ S CO₂H A CO₂H X Figure Q1(a) The drugs that are available for Highly Active Antiretroviral Therapy (HAART) can be broken down into five classes. Define three of these classes providing one drug example for each. (6 marks) Question 1 continued on page 2....

측 Cí ㅡ -SO₂ H

H3C name: H₂ C Incorrect CH₂