Waec Chemistry 2010 Past Questions and Answers

Question 31:

• WAEC 2010

Fact and oils are used as raw materials in the following industries except

A. Paint industry
B. Plastic industry
C. Margarine industry
D. Cosmetics industry

Question 32:

• WAEC 2010

Which of the following substances is that detergents

A. Are readily available
B. Are in powerdered from
C. Are non-biodegradable
D. Lather readily with water

Question 33:

• WAEC 2010

The products of fermentation of sugar are

A. Carbon(IV) oxide and water
B. Ethanol and carbon (IV) oxide
C. Ethanol and water
D. Ethanol and enzymes

Question 34:

• WAEC 2010

The IUPAC name of C₂H₆COOC_{2,/sub>H[sub]6} is
[/sub]

A. Ethyethanoate
B. Ethylproanoate
C. Propylethanoate
D. Propylpropanoate

Question 35:

• WAEC 2010

An organic compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen. What is the empirical formula of the compound? [O = 16.0, C = 12.0, H = 1.0]

A. C₂HO
B. CHO
C. CH₂O
D. CHO₂