Jamb Chemistry Past Questions For Year 1992
Question 1
A given mass of gas occupies 2 dm2 at 300k. At what temperature will its volume be doubled keeping the pressure constant?
- A. 400k
- B. 480k
- C. 550k
- D. 600k
Question 2
The nucleus of the isotopes tritium,contains
- A. two neutrons with no protons
- B. one neutron and one proton
- C. two neutrons and one proton
- D. two neutrons, one proton and one electron
Question 3
Which of the following is a measure of the average kinetic energy of the molecules of a substance?
- A. volume
- B. mass
- C. pressure
- D. temperature
Question 4
How many moles of (H+) are there in 1 dm3 of 0.5 M solution of H2SO4?
- A. 2.0 moles
- B. 1.0 moles
- C. 0.5 mole
- D. 0.25 mole
Question 5
There is a large temperature interval between the melting point and the boiling point of a metal because?
- A. metals have very high melting points
- B. metals conduct heat very repaidly
- C. melting does not break the metalic bond but boiling does
- D. the crystal lattice of metals is easily broken
