Jamb Chemistry 2021 Past Questions and Answers

Question 16:

• JAMB 2021

220g of carbon dioxide contains ----- moles

A. 5
B. 6
C. 3
D. 4

Question 17:

• JAMB 2021

The inherited traits of an organism are controlled by?

A. RNA molecules
B. Nucleotides
C. DNA molecules
D. Enzymes

Question 18:

• JAMB 2021

The most abundant rare gas in the atmosphere is?

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

Question 19:

• JAMB 2021

The heat required to raise the temperature of the body by 1k is called?

A. Specific heat
B. Thermal capacity
C. Water equivalent
D. None of the above

Question 20:

• JAMB 2021

The nucleus of a hydrogen atom consist of a?

A. 1 proton only
B. 1 proton, 2 neutron
C. 1 neutron only
D. 1 electron only