Waec Chemistry 2009 Past Questions and Answers

Question 46:

• WAEC 2009

Dry hydrogen chloride when dissolved in methylbenzene

A. Turns blue litmus paper red
B. Turns red litmus paper blue
C. Does not affect litmus paper
D. Bleaches litmus paper

Question 47:

• WAEC 2009

A consequence of global warming is

A. Air pollution
B. Flooding
C. Increased humidity
D. Low rainfall

Question 48:

• WAEC 2009

The major product in the solvay process is

A. NaOH
B. Na ₂CO ₃
C. NH ₃
D. H ₂SO₄

Question 49:

• WAEC 2009

Which of the following alloys does not contain copper? l. Brass II. Bronze III. Steel

A. L only
B. Ll only
C. Lll only
D. Ll and lll only

Question 50:

• WAEC 2009

The electron configuration of carbon atom in its excited state is [ 6C]

A. 1s²2s ²2px¹2py ¹
B. 1s ² 2s ²2px ²2py^o
C. 1s¹2s²2px¹2py¹2pz¹
D. 1s ²2s¹2px¹2py¹2pz¹