Not yet checked 2 of 6 questions have not yet been compared with the official paper.
Part II
Q. 3
(a)Discuss how a catalyst changes the rate and path of the reaction? [6]
(b)Reaction of 1, 3-butadiene with HBr gives two products, draw reaction coordinate diagram to illustrate thermodynamic and kinetic products of the reaction. [7]
(c)For the following reaction: CH 3 (CH 2 ) 3 Br + OH - → CH 3 (CH 2 ) 3 OH + Br - Discuss rate law and various factors that affect the rate of reaction. [7]
(6)
Q. 4
(a)Starting from benzene how would you prepare the following compounds: Benzoic acid, 4-Bromonitobenzene, Maleic anhydride [6]
(b)Show reaction of C 2 H 5 MgBr with each of the following: [6]
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(6)
Q. 5
(c)Assign hybridization at each carbon in the following compound: [4]
(d)Suggest two methods to prepare aromatic amines. [4]
(4)
Q. 6
(a)Illustrate giving suitable examples the difference between Homogenous and Heterogeneous catalysis. [6]
(b)Outline synthesis of azo dye starting with phenol and a suitable aromatic amine. [4]
(c)Write notes on the following: [10]
(6)
Q. 7
Write structure of product(s) obtained from each of the following reactions:
(i)CH 3 CH 2 COOH + CH 3 CH 2 OH + H 2 SO 4 → [2]
(ii)CH 3 COCH 3 +LiAlH 4 → [2]
(iii)CH 3 COOH+ SOCl 2 → [2]
(iv)(CH 3 ) 3 CBr + NaOH(aq) → [2]
(v)C 6 H 5 NH 2 + NaNO 2 + HCl (conc)→ [2]
(vi)CH 3 CH 2 COCH 3 [2]
(vii)C 6 H 5 NO 2 + Sn/HCl → [2]
(viii)CH + Na/NH 3 → [2]
(ix)CH 3 CH=CH 2 + HBr→ [2]
(x)CH 3 COCH 3 + NH 2 OH → [2]
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(20)
Q. 8
(a)Write main steps in the formation of following polymers: [6]
(b)What are alkaloids, describe chemical properties and structure of any two alkaloids. [7]
(c)Differentiate between oil, fat and wax. Draw structure of triglyceride containing oleic acid [CH 3 (CH 2 ) 7 CH = CH ( CH 2 ) 7 COOH] as fatty acid and write reaction triglyceride with H 2 /Ni followed by NaOH(aq). [6]
The 2011 CSS Chemistry paper set by the FPSC. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet.
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