Jamb Chemistry Past Questions and Answers

Question 2201:

• JAMB 2021

Which of the following are chemical changes?
I. cooking of food
II. digestion of food
III. freezing of water
IV. water is heated up

A. I and II
B. I, II, and III
C. III and IV
D. All of the above

Question 2202:

• JAMB 2021

The atomic weight of nitrogen is?

A. 10
B. 12
C. 14
D. 16

Question 2203:

• JAMB 2021

Give the common name for the following compound (CH\(_{3}\))\(_{2}\) CH CH\(_{2}\) -Br

A. Isobutyl bromide
B. Methyl bromide
C. Propyl bromide
D. Butyl bromide

Question 2204:

• JAMB 2021

The enzyme that converts glucose to ethyl alcohol is?

A. Maltase
B. Zymase
C. Diatase
D. Invertase

Question 2205:

• JAMB 2021

The scientist who stated that matter can be converted into energy is?

A. Boyle
B. Lavoiser
C. Avogadro
D. Einstein