This series of questions and answers is dedicated to aspirants of the Ogun State College of Nursing. You can study the past and answers directly on this blog. The post will take you through exams conducted by the college for the past 11 years.
Each blog post will consist of 10 questions, taken from English, Mathematics, Chemistry, Biology, and Physics contained in the "Past Questions & Answers Pack". If you want to have the past questions and answers downloaded to your phone or computer to stay, you can buy a PDF copy of it. You can also print it for studies. To get the pack immediately, follow the steps at the end of this post.
If you're here to study online, we've covered 2013 Mathematics. Now, let's continue with the 2013 Chemistry.
2013 Chemistry Questions
Choose the correct answer from option A-D
21. What is the chemical formula for sulfuric acid?
a) HCl
b) H2SO4
c) NaOH
d) NH3
Answer: b) H2SO4
22. Which of the following is a metalloid?
a) Boron
b) Silver
c) Copper
d) Zinc
Answer: a) Boron
23. What is the chemical formula for carbon dioxide?
a) CO2
b) C2O
c) CO
d) C2O2
Answer: a) CO2
24. Which of the following is a greenhouse gas?
a) Nitrogen
b) Oxygen
c) Carbon dioxide
d) Helium
Answer: c) Carbon dioxide
25. What is the chemical formula for methane?
a) CH4
b) CH3OH
c) C2H5OH
d) C6H12O6
Answer: a) CH4
26. Which of the following is an example of an organic compound?
a) Water
b) Salt
c) Glucose
d) Carbon dioxide
Answer: c) Glucose
27. What is the chemical formula for ammonia?
a) NH3
b) NH4+
c) NO2
d) NO3-
Answer: a) NH3
28. Which of the following is not a state of matter?
a) Solid
b) Liquid
c) Gas
d) Plasma
Answer: d) Plasma
29. What is the chemical symbol for silver?
a) Si
b) Ag
c) Au
d) Al
Answer: b) Ag
30. Which of the following is a transition metal?
a) Copper
b) Sodium
c) Zinc
d) Calcium
Answer: a) Copper
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