Jamb Chemistry Past Questions For Year 2021
Question 1
What is the IUPAC name for the following compound? HC\(\equiv\)CCH\(_{3}\)
- A. Acetylene
- B. Methyl acetylene
- C. Butanol
- D. Decanoic acid
Question 2
The scientist who stated that matter can be converted into energy is?
- A. Boyle
- B. Lavoiser
- C. Avogadro
- D. Einstein
Question 3
The enzyme that converts glucose to ethyl alcohol is?
- A. maltase
- B. zymase
- C. Diatase
- D. Invertase
Question 4
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 5
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. cooking of food
- B. I and II
- C. I, II, and III
- D. III and IV
- E. all of the above
