Jamb Chemistry Past Questions For Year 1992
Question 11
The pollutants that are likely to be present in an industrial environment are?
- A. H2S,SO2 and oxides of nitrogen
- B. NH3, HCI and CO
- C. CO2, NH3 and H2S
- D. dust, NO and CI2
Question 12
147N + X → 178O + 11 H. In the above reaction, X is a?
- A. neutron
- B. helium atom
- C. litgium atom
- D. deuterium atom
Question 13
How many lone pairs of electron are there on the central atom of the H2O molecules?
- A. 1
- B. 2
- C. 3
- D. 4
Question 14
The nucleus of the isotope tritium, contains?
- A. two neutrons with no protons
- B. one neutron and one protons
- C. two neutrons and one proton
- D. two neutrons, one proton and one electron
Question 15
A sample of orange juice is found to have a pH of 3.80. What is the concentration of the hydroxide ion in the juice?
- A. 1.6 x 10-4
- B. 6.3 x 10-11
- C. 6.3 x 10-4
- D. 1.6 x 10-11
