Chemistry Past Questions

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3111

The compound that makes palm wine taste sour after exposure to the air for few days is

A. Ethanol
B. Ethanoic acid
C. Methanol
D. Methanoic acid

View Answer & Discuss (12) WAEC 2016

3112

Which of the following compounds is/are secondary alkanols?

i) CH₃CH(CH₃)CH₃OH
ii) CH₃CH₂CH(OH)CH₃
iii) CH₃C(OH)(CH₃)CH₃

A. I only
B. II only
C. I and III only
D. II and III only

View Answer & Discuss (1) WAEC 2016

3113

Consider the following reaction equation
C₂H_4(g) + 3O_2(g) \(\to\) 2CO_2(g) + 2H₂O_(l).

The volume of oxygen at s.t.p that will be required to burn 14g of ethene is
[C₂H₄ = 28; Molar volume of gas at s.t.p = 22.4dm³

A. 64.2dm³
B. 33.6dm³
C. 11.2dm³
D. 3.73dm³

View Answer & Discuss WAEC 2016

3114

Which of the following sources of energy contributes to green-house effect?

A. Natural gas
B. Nuclear
C. Wind
D. Solar

View Answer & Discuss (3) WAEC 2016

3115

A consequences of global warming is

A. Air pollution
B. Flooding
C. Increased humidity
D. Water pollution

View Answer & Discuss (13) WAEC 2016

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