CIE iGCSE Co-Ordinated Science C11.6 Alcohols Exam Style Questions Paper 3
Question
Ethanol has the formula C2H5OH.
(a) State the number of different elements in one molecule of ethanol.
(b) Complete Fig. 8.1 to show the structure of ethanol.
(c) State two ways of producing ethanol.
1 …………………………………………………………………………
2 …………………………………………………………………………
(d) Complete the word equation for the complete combustion of ethanol.
ethanol + ………………………….. →………………………….. + …………………………..
(e) Explain why ethanol is not a hydrocarbon.
(f) Ethanol is used in alcoholic drinks.
State one other use for ethanol.
▶️Answer/Explanation
Ans : 8(a) 3 ;
8(b)
C-O-H ;
all else correct ;
8(c) fermentation ;
reaction of ethene with steam / water ;
8(d) oxygen ;
carbon dioxide and water ;
8(e) contains oxygen ; 1
8(f) solvent / fuel ;