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Chemistry Past Questions and Answers

Waec Chemistry Questions

Question 1426:

Classification of alkanols is based on the

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A Number of carbon atoms present in the compound
B Molecular mass of the compound
C Molecular formula of the compound
D Number of alkyl groups bonded to the carbon having the hydroxyl group

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Question 1427:

The name of the compound \(C_{4}H_{9}COOC_{3}H_{7}\) is

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A Propyl pentanoate
B Pentyl propanoate
C Butyl propanoate
D Propyl butanoate

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Question 1428:

Which of the following pairs of gases are pollutants from car exhaust?

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A Nitrogen(II) oxide and Carbon(IV) oxide
B Carbon(IV) oxide and Nitrogen
C Carbon(II) oxide and Sulphur(IV) oxide
D Carbon(II) oxide and oxygen

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Question 1429:

Fats and oils can be obtained from any of the following sources except

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A Paraffin oil
B Animals
C Groundnuts
D Palm kernel

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Question 1430:

The condensation of two units of glucose will produce a dissacharide with the formula \(C_{12}H_{22}O_{11}\) which is

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A Sucrose
B Maltose
C Galactose
D Mannose

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