JAMB Chemistry Questions and Answers 2022/2023 Today CBT Set/Batch

JAMB Chemistry questions and answers 2022 sample questions and answers. This tips will be helpful for JAMB Chemistry Mop up Exam 2022:

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On this page, we provide free JAMB chemistry questions and answers for 2022, free JAMB practice test questions for all subjects and the likely JAMB chemistry questions for 2022.

JAMB Chemistry Exam Pattern 2022/2023 and What to Expect

Understanding the pattern for this JAMB 2022 Chemistry exam will help you to perform better in the JAMB Chemistry exam even without relying on the use of expo or runs.

How to pass JAMB Chemistry 2022 and score high? Below are helpful JAMB Chemistry hints, points to note about the Chemistry exam pattern in JAMB and where to expect the JAMB Chemistry questions 2022 from:

1. All chemistry questions in JAMB are set from SS1 to SS3 scheme of work
2. Using JAMB chemistry syllabus to study can boost your performance by 60%. Get JAMB Chemistry syllabus 2022 here
3. A higher percentage (about 60 to 90%) of the JAMB chemistry questions 2022 will be set from past questions
4. There are 40 questions in total for chemistry in this exam.
5. Here are top secrets to score 300+ in JAMB 2022

Check out: 5 reasons candidates fail JAMB and how to avoid them

JAMB Chemistry Questions and Answers 2022

The following are good samples of the JAMB likely chemistry questions 2022 and their answers:

1. Which element is oxidized and which is the oxidizing agent in this equation 4NH₃ + 5O₂  4NO + 6H₂O?

1. O and O₂
2. N and NH₃
3. H and NH₃
4. O and NH₃
5. N and O₂

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The correct answer is N and O₂ (option E)

2. How many number of atoms of aluminum are in 3.50 grams of Al₂O₃?

1. 6 x 10²²
2. 13 x 10²²
3. 61 x 10²²
4. 4 x 10²²

The correct answer is (a) 4.13 x 10²²

3. Which of the following elements is an alkaline earth metal in period 3 of the periodic table?

1. Mg
2. Hg
3. Li
4. Fe
5. Cu

The correct answer is Mg (option A)

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4. The isoelectronic species with the smallest radius is_____?

1. Se^2-
2. Br^–
3. Sr²⁺
4. Rb⁺

The correct answer is Sr²⁺

5. Calculate the formula weight of Al₂(SO₄)₃.18H₂O.

1. 745g
2. 4g
3. 327g
4. 4g

The correct answer is 666.4g

6. The solutions of weak acids have lower concentrations of Hydrogen ion H⁺ than solutions of strong acids.

1. True
2. False
3. Acids has no concentrations
4. None of the above
5. All of the above

The correct answer is TRUE (Option A)

7. What is the empirical formula for an oxide of lead (Pb) which contains 90.65% Pb, by weight.

1. Pb₂O
2. PbO₂
3. Pb₃O₄
4. Pb₂O₃

The correct answer is Pb₃O₄

8. Which of the following elements has the lowest first ionization energy?

1. Xe
2. Li
3. Ar
4. Kr
5. Pb

The correct answer is Xe

9. Calculate the oxidation number of carbon (C) in this compound (K₂CO₃)

1. -4
2. +4
3. -2
4. +2

The correct answer is +4

10. Which one among the following compounds is a weak acid?

1. HCl
2. HClO₃
3. H₂SO₄
4. HF

The correct answer is HF

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Possible JAMB Questions and Answers for Chemistry 2022

The following are more possible chemistry questions and answers samples for JAMB 2022 that you may like to practice alongside your JAMB Chemistry past questions and answers:

1. What is the percent by weight of C in 154 g of C₄H₈O₃?

1. 46%
2. 64 %
3. 30%
4. 42%
5. 2%

The correct answer is 46%

2. The most likely soluble base among the following is___?

1. [Cu(OH)₂]
2. [Ca(OH)₂]
3. NaOH
4. Zn(OH)₂
5. Ga(OH)₃

 See also: JAMB Mathematics Questions and Answers here

The correct answer is NaOH

3. Titration can be used to determine the concentration of a solution.

1. True
2. False
3. The concentration of a solution cannot be determined
4. None of the above

The correct answer is True

4. Which among these is an ionic hydride?

1. KH
2. PH₃
3. PbCl
4. H₂S

The correct answer is KH

5. What is the mass in grams of 2.6 x 1022 chlorine atoms?

1. 15g
2. 1g
3. 5g
4. 5g
5. 81g

The correct answer is 1.5g

6. Which of the following salt will be formed when HClO₃ react with Ba(OH)₂?

1. BaCl₂
2. NaCl₂
3. Ba(ClO₃)₂
4. BaO₂

The correct answer is Ba(ClO₃)₂

7. All except one, increase down the group for alkaline earth metals

1. Ionic radius
2. Atomic radius
3. First ionization energy
4. Atomic volume

The correct answer is first ionization energy

8. The net ionic equation for the reaction between a strong acid soluble base is______?

1. H⁺ + OH^– → H₂O
2. H^– + OH⁺ → H₂O
3. H³⁺ + 2OH^– → H₂O
4. H₂⁺ + OH^2- → H₂O

The correct answer is H⁺ + OH^– → H₂O

9. The elements with the greatest attraction for electrons in a covalent bond is ____?

1. Ge
2. Hg
3. Br
4. Xe
5. Al

The correct answer is Br

10. Calculate the empirical formula of a  compound with 14.4% of hydrogen and 85.6% of carbon by mass.

1. CH₂
2. C₂H₃
3. C₂H₄
4. CH₂O

The correct answer is CH₂

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JAMB Past Questions and Answers for Chemistry 2022

Below are few JAMB Chemistry past questions and answers to practice. We advise you to get JAMB past questions and answers booklet and study other chemistry past questions.

1. Neutralization reaction involves the reaction between an acid and base to produce____?

1. Salt
2. Water
3. Salt and Water
4. None

The correct answer is Salt and Water

2. The element with the largest atomic radius is____?

1. Na
2. Pb
3. Hg
4. Rb
5. Cl

The correct answer is Rb

3. Which among these oxides is the most basic oxide?

1. P₄O₆
2. N₂O₃
3. KPb
4. N₂O₅
5. Bi₂O₅

The correct answer is Bi₂O₅

4. How many atoms are there in one mole of CH₃OH?

1. 6 x 10²⁴
2. 2 x 10²³
3. 12 x 10²³
4. 87 x 10²⁴

The correct answer 3.6 x 1024

5. Which of these salts is insoluble?

1. Ca(NO₃)₂
2. BaCO₃
3. NaCl₂
4. NH₄Cl
5. Na₂S

The correct answer is BaCO₃

Those are the practice JAMB chemistry questions and answers 2022 that you should add to your study and practice list.

Check out: how to prepare and pass JAMB 2022 excellently

For better performance in the 2022 JAMB chemistry exam, we kindly urge you to prepare adequately with helpful materials like this.

You should also make sure to get a JAMB Chemistry past questions and answers booklet and study other chemistry past questions.