Post Utme Chemistry Past Questions and Answers

Question 656:

According to the kinetic theory, an increase in temperature causes the kinetic energy of particles to ____________

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

Question 657:

I. \(H=1 s^{1}\)
II. \(N=1 S^{2} 2 s^{2}-p^{3}\)
III \(\mathrm{HIO}=\mathrm{s}^{2} \mathrm{~s}^{2} \mathrm{p}^{4}\)
IV \(\mathrm{Zn}=\mathrm{s}^{2} \mathrm{~s} \mathrm{~V}^{2} \mathrm{~S}^{2} \mathrm{~S}^{2} \mathrm{~d}^{10}\)

From the above, which following pairs is likely paramagnetic?

A. 1 and II
B. 1 and III
C. 1 and IV
D. 1 and \(\mathrm{NV}\)

Question 658:

A gas exerts pressure on its container because ____________

A. Some of its molecules are moving faster that others
B. Of the mass of each other
C. Of the mass of the molecules of gas
D. The molecules of a gas collide with walls of the containers

Question 659:

The weakest attractive forces that can be observed between two molecules is ____________

A. Ionic
B. Covalent
C. Coordinate
D. Vander Waals

Question 660:

A consequence of global warming is ____________

A. Air pollution
B. Water pollution
C. Increased humidity
D. Flooding