2. (c) Table 7 shows the observations from some tests carried out on salt X. Test Observation I: Heating of salt X solid A metal oxide is formed and a brown gas is given off II. Salt X solution is mixed with excess aqueous ammonia A white precipitate which is insoluble in excess aqueous ammonia is formed
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9. Diagram 9 shows how compound G is formed from alkene Alkene + H 2 O Compound F Compound G + H 2 O Phosphoric acid, 300 O C, 60 atm Porcelain chips
10. (i) Name one alkene that has less than four carbon atoms. Draw its structural formula. or ethene propene
11. ii) Based on your answer in 9 ai) what is the name of compound F and Compound G Name of alkene ethene propene Name of Compound F ethanol propanol Name of Compound G ethene propene Alkene + H 2 O Compound F Compound G + H 2 O Phosphoric acid, 300 O C, 60 atm Porcelain chips
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15. Alkenes, alcohols and carboxylic acids are three different homologous series. Construct a table to show the general formula , the functional group and the name of a member in each of the series.
16. HMLGOS SERIES ALKENE ALCOHOLS CARBOXYLIC ACIDS GEN FORMLA C n H 2n n= 2,3, 4… C n H 2n+1 OH n= 1,2, 3…. C n H 2n+1 COOH n=0,1,2….
17. HOMOUS SERIES ALKENE ALCHOLS CARBXIC ACIDS FUNCTN GROUP Carbon- carbon double bond (-C=C-) Hydroxyl (-C-OH) Carboxyl ( -COOH )
18. HOMOUS SERIES ALKENE ALCOLS CARBYLIC ACIDS NAME OF MEMBER ethene ethanol Ethanoic acid OR propene propanol Propanoic acid OR butene butanol Butanoic acid
20. data from Exp I and Exp II that were carried out to study the rate of reaction of zinc with two acids, P and Q. Exp Reactants Products Observation I 2.6 g of zinc and 50 cm 3 of acid P 2.0 mol dm -3 Zinc chloride and hydrogen gas The temperature of the mixture increases II 2.6 g of zinc and 50 cm 3 of acid Q 2.0 mol dm -3 Zinc sulphate and hydrogen gas The temperature of the mixture increases
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24. ∆ H E- activattion energy without catalyst E’- activattion energy with catalyst energy Energy profile diagram of reaction zinc and hydrochloric acid