Skip to content

JAMB UTME 2022

JAMB Chemistry 2022 past questions

5 objective questions from the 2022 JAMB Chemistry paper. Answer each one, then reveal the answer and explanation.

All JAMB Chemistry past questions

  1. Question 1

    Organic chemistry

    What is the molecular formula of butane?

    1. Option A: C₄H₁₀
    2. Option B: C₄H₈
    3. Option C: C₄H₆
    4. Option D: C₄H₉
    Show the answer to question 1

    Answer: A, C₄H₁₀

    Alkanes follow CₙH₂ₙ₊₂, so butane with 4 carbon atoms is C₄H₁₀.

  2. Question 2

    Periodic table

    In which group of the periodic table is fluorine found?

    1. Option A: Group II
    2. Option B: Group III
    3. Option C: Group VII
    4. Option D: Group IV
    Show the answer to question 2

    Answer: C, Group VII

    Fluorine (configuration 2, 7) is in Group VII.

  3. Question 3

    Atomic structure

    An atom of lithium has atomic number 3 and mass number 7. How many neutrons are in its nucleus?

    1. Option A: 7
    2. Option B: 3
    3. Option C: 4
    4. Option D: 10
    Show the answer to question 3

    Answer: C, 4

    Neutrons = mass number − atomic number = 7 − 3 = 4.

  4. Question 4

    Electronic configuration

    What is the electronic configuration of argon (atomic number 18)?

    1. Option A: 2, 8, 7
    2. Option B: 2, 8, 8, 1
    3. Option C: 2, 8, 8, 2
    4. Option D: 2, 8, 8
    Show the answer to question 4

    Answer: D, 2, 8, 8

    Fill the shells in order, 2 then 8 then 8: argon has 18 electrons, arranged 2, 8, 8.

  5. Question 5

    Chemical symbols

    What is the chemical symbol of chlorine?

    1. Option A: C
    2. Option B: Ch
    3. Option C: Cl
    4. Option D: Cr
    Show the answer to question 5

    Answer: C, Cl

    Chlorine is Cl.

Practise JAMB Chemistry on SchoolEasy CBT

In SchoolEasy, students answer timed questions on screen, see an explanation for every answer, and track their progress topic by topic. Teachers turn past questions into class tests that mark themselves.

Practise in the appRequest a demo for your school

School management made effortless.

We strive to build the best school management software for schools from all over the world.

Available soon on all digital platforms

Download on theApp StoreGet it onGoogle Play