Jamb Chemistry Past Questions For Year 2021
Question 6
Which of the following is a non-metal that remains liquid at room temperature?
- A. Chlorine
- B. Phosphorus
- C. Bromine
- D. Helium
Question 7
Which one of the following is not a mixture?
- A. Air
- B. Mercury
- C. Milk
- D. Cement
Question 8
A 'breath test' used by traffic police to check drunken driving uses?
- A. Tumeric on filter paper
- B. Silica gel coated with saliva nitrate
- C. Potassium permanganate-sulphuric acid
- D. Potassium dichromatic-sulphuric acid
Question 9
What is the chemical name for the compound CuCO\(_{3}\)?
- A. Copper (iii) carbonate
- B. Copper (ii) carbonate
- C. Copper (i) carbonate
- D. Copper
