Jamb Chemistry Past Questions and Answers

Question 1836:

• JAMB 2015

According to the kinetic theory an absence in temperature causes the kinetic energy of particles to

A. Decrease
B. Increase
C. Remain constant
D. Be zero

Question 1837:

• JAMB 2015

PCL5(g)= PCL3(g) + Cl2(g)
In the reaction above, a decrease in pressure will

A. Decelerate the reaction
B. Increase yield of Pcl3
C. Increase the yield of Pcl5
D. Accurate the reaction

Question 1838:

• JAMB 2015

Which of the following gives a precipitation when treated with NaOH Solution?

A. AlCl₃
B. NH₄Cl
C. Na₂CO₃
D. CH₃COONa

Question 1839:

• JAMB 2015

Electronic configuration of an elements 13x in the subsidiary energy level is

A. \( 1s^2 2s^2 2p^6 3s^2 3p^1 \)
B. \( 1s^22s^2 2p^4 3p^1 3s^1 \)
C. \( 1s^2 2s^2 2p^6 3s^2 3p^3 \)
D. \( 1s^1 2s^2 2p^6 3s^2 3p^4 \)

Question 1840:

• JAMB 2015

Alloys are best prepared by

A. Electroplating
B. Arc-welding
C. Reducing and mixture of their metallic
D. Cooking a molten of the metals