Atomic structure and bonding - Jamb Chemistry Past Questions and Answers

Question 171:

• JAMB 2014

Fluorine does not occur in the free state in nature because

A. It is a poisonous gas
B. It belongs to the halogen family
C. It is inert
D. Of its high reactivity

Question 172:

• JAMB 2015

Which of the noble gases has the greatest ionization energy

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

Question 173:

• JAMB 2015

An elements used in production of matches is

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

Question 174:

• 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

Question 175:

• JAMB 2015

In the discovery of protein, the instrument used is

A. Cathode ray tube
B. Glass tube and discharge tube
C. Discharge tube with terminal cathode
D. Discharge tube with central cathode