Chemistry, 2014, WASSCE/WAEC MAY/JUNE, Exam, Paper 1 | Objectives

Paper Info

Year :

2014

Title :

Chemistry

Exam :

WASSCE/WAEC MAY/JUNE

Paper 1 | Objectives

31 - 40 of 45 Questions

#	Question	Ans
31.	Reduction is the process of A. loss of electron B. loss of hydrogen C. loss of oxygen D. addition of electronegative elements	C
32.	Ethene molecules can be added to one another to form a long chain compound called a A. dimer B. monomer C. polymer D. trimer	C
33.	Which of the following compounds determines the octane rating of petrol? A. 1,2,3 - trimethyl pentane B. 2,3,5 - trimethyl octane C. 2,3,5 - trimethyl pentane D. 2,2,4 - trimethyl pentane	D
34.	Which type of reaction is illustrated by the following equation? C₁₂H₂₆ → 5C ₂H₄ + C ₂H₆ A. Addition B. Cracking C. Hydrogenation D. Polymerization	B
35.	The IUPAC name of the following organic compound is HOOC - COOH A. ethan - 1, 2 -dioc acid B. ethanoic acid C. oxalic acid D. propan - 1,2-dioic acid Show Content Detailed Solution Oxalic acid - HOOCCOOH It is the simplest dicarboxylic acid. It is a white crystaline solid that forms a colorless solution in water.	A
36.	The enzyme that catalyses the conversion of glucose te ethanol and carbon (IV) oxide is A. diastase B. maltase C. ptyalin D. zymase	D
37.	A colourless hydrocarbon with a sweet smell undergoes substitution reaction. The hydrocarbon is likely to be A. alkanol B. benzene C. ester D. methane	C
38.	The liquid hydrocarbon likely to be found in the fraction of crude oil used for domestic cooking is A. C₃H₈ B. C ₅H ₁₂ C. C₁₃H₂₈ D. C₂₀H₄₂	B
39.	Consider the reaction represented by the following equation: C₂H_4(g) + 30_2(g) → 2CO_2(g) + 2H₂O_(g)How many moles of ethene would be burnt to produce 0.1 mole of water? A. 0.05 mole B. 0.10 mole C. 0.20 mole D. 2.00 moles	A
40.	Which of the following organic compounds could be represented by the empirical formula CH₂O? A. Ethanal B. Ethane C. Ethanol D. Ethanoic acid	D

31.	Reduction is the process of A. loss of electron B. loss of hydrogen C. loss of oxygen D. addition of electronegative elements	C
32.	Ethene molecules can be added to one another to form a long chain compound called a A. dimer B. monomer C. polymer D. trimer	C
33.	Which of the following compounds determines the octane rating of petrol? A. 1,2,3 - trimethyl pentane B. 2,3,5 - trimethyl octane C. 2,3,5 - trimethyl pentane D. 2,2,4 - trimethyl pentane	D
34.	Which type of reaction is illustrated by the following equation? C₁₂H₂₆ → 5C ₂H₄ + C ₂H₆ A. Addition B. Cracking C. Hydrogenation D. Polymerization	B
35.	The IUPAC name of the following organic compound is HOOC - COOH A. ethan - 1, 2 -dioc acid B. ethanoic acid C. oxalic acid D. propan - 1,2-dioic acid Show Content Detailed Solution Oxalic acid - HOOCCOOH It is the simplest dicarboxylic acid. It is a white crystaline solid that forms a colorless solution in water.	A

36.	The enzyme that catalyses the conversion of glucose te ethanol and carbon (IV) oxide is A. diastase B. maltase C. ptyalin D. zymase	D
37.	A colourless hydrocarbon with a sweet smell undergoes substitution reaction. The hydrocarbon is likely to be A. alkanol B. benzene C. ester D. methane	C
38.	The liquid hydrocarbon likely to be found in the fraction of crude oil used for domestic cooking is A. C₃H₈ B. C ₅H ₁₂ C. C₁₃H₂₈ D. C₂₀H₄₂	B
39.	Consider the reaction represented by the following equation: C₂H_4(g) + 30_2(g) → 2CO_2(g) + 2H₂O_(g)How many moles of ethene would be burnt to produce 0.1 mole of water? A. 0.05 mole B. 0.10 mole C. 0.20 mole D. 2.00 moles	A
40.	Which of the following organic compounds could be represented by the empirical formula CH₂O? A. Ethanal B. Ethane C. Ethanol D. Ethanoic acid	D