Waec Chemistry Past Questions For Year 2009
Question 46
The electron configuration of carbon atom in its excited state is [ 6C]
- A. 1s22s 22px12py 1
- B. 1s 2 2s 22px 22pyo
- C. 1s12s22px12py12pz1
- D. 1s 22s12px12py12pz1
Question 47
The electron configuration of carbon atom in its excited state is [ 6C]
- A. 1s22s 22px12py 1
- B. 1s 2 2s 22px 22pyo
- C. 1s12s22px12py12pz1
- D. 1s 22s12px12py12pz1
Question 48
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 49
The major product in the solvay process is
- A. NaOH
- B. Na 2CO 3
- C. NH 3
- D. H 2SO4
Question 50
A consequence of global warming is
- A. air pollution
- B. flooding
- C. increased humidity
- D. low rainfall
