The sub-atomic particles located in the nucleus of an atom are?
- A. neutron and proton
- B. proton and electron
- C. proton and ions
- D. neutron and electron
2.
The IUPAC nomenclature of the structure is?
- A. 3-chloro-3-methylbutane
- B. 2,2,-dichloro-3-methylbutane
- C. 3-methylchlorobutane
- D. 2-chloro-2-methylbutane
3. SO2 + O2 → 2SO3
In the reaction above, the most suitable catalyst is?
- A. chromium(vi)oxide
- B. iron(iii)oxide
- C. copper(i)oxide
- D. vanadium(v)oxide
4. In the preparation of salts, the method employed will depend on the?
- A. composition
- B. dissociating ability
- C. stability to heat
- D. precipitating ability
5. The following non-metal form acidic oxides with oxygen except?
- A. phosphorus
- B. sulphur
- C. carbon
- D. chlorine
6. How many neutrons are present in atom with mass number and atomic number 37 and 17 respectively?
- A. 18
- B. 20
- C. 37
- D. 17
7. The sulphide that is commonly used in coating electric fluorescent tubes is?
- A. iron(ii)Sulphide
- B. tin(ii)sulphide
- C. Zinc Sulphide
- D. lead(iv) Sulphide
8. An organic compound which liberate carbon(iv)oxide from trioxocarbonate(iv) solution is likely to be?
- A. C2H5OH
- B. C3H4
- C. C6H6
- D. CH3COOH
9. Addition of sodium chloride to water to form a solution would lead to?
- A. increase in freezing point and increase the boiling point
- B. increase in freezing point and decrease the boiling point
- C. decrease in freezing point and decrease the boiling point
- D. decrease in freezing point and increase the boiling point
10. A chemical widely used as a fertilizer is?
- A. galena
- B. bauxite
- C. emerald
- D. nitrochalk
11. On the basis of the electrochemical series, which of these ions will show the greater tendency to be discharged at the cathode in an electrolytic cell
- A. cu2+
- B. sn2+
- C. fe2+
- D. zn2+
12. Addition of charcoal to the filter bed of sand during water treatment for township supply is to?
- A. prevent goiter
- B. prevent tooth decay
- C. remove odour
- D. kill germs
13. Using the metal activity series, the metal that can liberate hydrogen gas from steam is?
- A. iron
- B. copper
- C. tin
- D. lead
14. An organic compound with fishy smell is likely to have a general formula?
- A. RCONHR1
- A. RCONH2
- C. RNH2
- D. RCOR1
15. N2O4 ⇔ 2NO2 (Δ = -ve)
From the reaction above, which of these conditions would produce the highest equilibrium yield for N2O4?
- A. Low temperature and high pressure
- B. Low temperature and low pressure
- C. high temperature and low pressure
- D. high temperature and high pressure
