Jamb Chemistry 2015 Past Questions and Answers

Question 11:

• JAMB 2015

Atomicity of ozone is

A. 1
B. 2
C. 3
D. 4

Question 12:

• JAMB 2015

Which of the noble gases has the greatest ionization energy

A. He
B. Xe
C. Ar
D. Rr

Question 13:

• JAMB 2015

The weakest attractive force that can be observed between two molecules is

A. Ionic
B. Covalent
C. Co-ordinate covalent
D. Vander Waals

Question 14:

• JAMB 2015

An elements used in production of matches is

A. Nitrogen
B. Aluminum
C. Copper
D. Sulphur

Question 15:

• JAMB 2015

Cathode rays cause an object placed behind a perforated anode to cast a shadow on the screen. This observation shows that the rays

A. Are positively charged
B. Are negatively charged
C. Have mass
D. Travel in straight lines