Jamb Chemistry Past Questions For Year 2011
Question 1
The principle of column chromatography is based on the ability of the constituents to
- A. move at different speeds in the column
- B. dissolve in each other in the column
- C. react with the solvent in the column
- D. react with each other in the column
Question 2
The relative atomic mass of a naturally occurring lithium consisting of 90% \(^7 _3\)Li and \(^6 _3\)10% Li is
- A. 6.9
- B. 7.1
- C. 6.2
- D. 6.8
Question 3
Which of the following questions is correct about the periodic table?
- A. The non-metallic properties of the elements tend to decrease across each period
- B. The valence electrons of the elements increase progressively across the period
- C. Elements in the same group have the same numbeer of electron shells
- D. Elements in the same period have the number of valence electrons
Question 4
From the diagram above, an ideal can be represented by
- A. M
- B. N
- C. K
- D. L
Question 5
Which of the following properties is NOT peculiar to matter?
- A. kinetic energy of particles increase from solid to gas
- B. Random motion of particles increases from liquid to gas
- C. Orderliness of particles increases from gas to liquid
- D. Random motion of particles increases from gas to solid
