(a) If R, S and T respectively are an alkene, alkene and a terminal alkyne:
(i) S and T would undergo addition reaction.
(ii) k, S and T would undergo combustion.
(iii) R and T would undergo substitution.
(b)(i) An alkanol is converted into an alkene by dehydration.
(ii) The third member of the alkanol series is propanol or propan - 2 - ol.
(iii) A primary alkanol reacts with excess acit'ified
(c)(i) Chemical test for alkanoic acid: Add (saturated) NaHCO\(^{3}\) or Na\(_2\)CO\(_3\)(solution), effervescence or gas evolved indicating alkanoic acid.
(ii) The reaction of methanoic acid with ethanol in the presence of mineral acid.
Equation: HCOOH + CH\(_3\)CH\(_2\)OH —> HCOOC\(_2\)H\(_5\) + H\(_2\)O
(iii) Role of mineral acid in (ii) above, is catalysis or acts as catalyst
(d) Cassava was pressure-cooked, then malt was added at 55°C for 2 hours followed by yeast. After 2 days at 27`C an organic product J and gas H were obtained
(i) H was CO\(_2\).
(ii) Starch is polysaccharide / complex carbohydrate. During treatment with malt, it was hydrolysed by diastascgcmylase Diastase
in malt to sugar / maltose.
(C\(_6\)H\(_{10}\)O\(_5\))n + nH\(_2\)O \(_n\)C\(_12\)H\(_{22}\)O\(_{11}\)