- Give the common name for the following compound (CH3)2CH CH2 -Br
- A. Isobutyl bromide
- B. Methyl bromide
- C. propyl bromide
- D. Butyl bromide
2. The enzyme that converts glucose to ethyl alcohol is?
- A. maltase
- B. zymase
- C. Diatase
- D. Invertase
3. The scientist who stated that matter can be converted into energy is?
- A. Boyle
- B. Lavoiser
- C. Avogadro
- D. Einstein
4. What is the IUPAC name for the following compound? HC≡CCH3
- A. Acetylene
- B. Methyl acetylene
- C. Butanol
- D. Decanoic acid
5. What is the chemical name for the compound Cu2CO3?
- A. Copper (iii) carbonate
- B. Copper (ii) carbonate
- C. Copper (i) carbonate
- D. Copper
6. 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
7. Which one of the following is not a mixture
- A. Air
- B. Mercury
- C. Milk
- D. Cement
8. Which of the following is a non-metal that remains at room temperature?
- A. Chlorine
- B. Phosphorus
- C. Bromine
- D. Helium
9. Which of the following are chemical changes?
I. cooking of food
II. digestion of food
III. freezing of water
IV. water is heated up
- A. I and II
- B. I, II, and III
- C. III and IV
- D. all of the above
10. The atomic weight of nitrogen is?
- A. 10
- B. 12
- C. 14
- D. 16
11. The gas which causes global warming is
- A. O2
- B. CO2
- C. N2
- D. He
12. Oxygen is absent in?
- A. Kerosene
- B. Soil
- C. Glass
- D. Cement
13. A sample of any of the following substances disappears after some time when exposed to air like camphor, naphthalene, or dry ice. This phenomenon is called?
- A. Sublimation
- B. Evaporation
- C. Diffusion
- D. Radiation
14. The maximum electron in N shell is?
- A. 2
- B. 8
- C. 18
- D. 32
15. Neutrons were discovered by?
- A. James Chadwick
- B. Ernest Rutherford
- C. J.J Thompson
- D. John Dalton
