CHM 101 CBT Practice Questions for FUOYE Students(Now Active)

Table of Contents

📘 CHM 101 PRACTICE TEST – IMPORTANT INSTRUCTIONS

Take your time to read the instructions carefully before starting this test.

📝 Test Details

Total Questions: 40

Time Allowed: 20 minutes

This gives you very few seconds per question, so manage your time wisely.

✅ If you can score at least 60%, you can be rest assured that you’ll ace CHM 101 in the real exam.

PS:

In the actual GST exam, you’ll likely be asked between 40 – 60 questions.

⚠️ EXAM STRATEGY & TIPS

Do not rush into answering questions.
Don’t waste too much time on questions you don’t know — skip and move on.
Start with questions that don’t involve calculations to save time.
Always crosscheck your answers.
Don’t be in a hurry to submit — you’re not in a competition.
Don’t be scared — getting an A is very achievable.
Don’t be overconfident either — calm your blood, no be only you sabi book 😌.
If you have any complaints, corrections, or feedback, please use the comment box.

📊 GRADING SCALE

70 – 100 → A

60 – 69 → B

50 – 59 → C

45 – 49 → D

40 – 44 → E

0 – 39 → F

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985

CHM 101

1 / 40

1. Arrangement of elements spirally around a cylinder was proposed by _____.

A. J.J. Thomson

B. Robert Millikan

C. De Chancourtois

D. Rydberg

2 / 40

2. The law of octaves was used to arrange atoms by _____.

A. John Newlands

B. Dobereiner

C. Lavoisier

D. Mendeleev

3 / 40

3. Volatility is not a property of _____

A. Covalent hydrides

B. Ionic hydrides

C. Molecular hydrides

D. Metallic hydrides

4 / 40

4. Lower density compared to alkali metals is not a property of _____.

A. Beryllium

B. Magnesium

C. Calcium

D. Alkaline earth metals

5 / 40

5. Graphite is used as the anode during extraction of _____.

A. Sodium

B. Calcium

C. Aluminium

D. Magnesium

6 / 40

6. Loss of silvery lustre of alkaline earth metals occurs due to _____.

A. Oxide layer formation

B. Moisture

C. Carbon reaction

D. Hydrogen absorption

7 / 40

7. Effective nuclear charge is represented by the symbol _____.

A. A

B. Q

C. Z

D. N

8 / 40

8. The ability of an element to participate in a chemical reaction is measured by _____.

A. Electron cloud

B. Electron density

C. Ionization energy

D. Nuclear charge

9 / 40

9. First precipitation occurs with the salt having the _____ Ksp value.

A. Zero

B. Highest

C. Lowest

D. Neutral

10 / 40

10. The most stable fluoride among alkali metals is formed by _____.

A. Lithium

B. Sodium

C. Cesium

D. Potassium

11 / 40

11. Covalent bonding is best represented by _____.

A. MgOH

B. NaCl

C. PCl₃

D. CaO

12 / 40

12. Radioactive isotope of hydrogen is _____

A. Protium

B. Deuterium

C. Neutrium

D. Tritium

13 / 40

13. Acceptance of electrons is common among elements in groups

A. 6 and 7

B. 3 and 4

C. 1 and 2

D. 5 and 8

14 / 40

14. Spontaneous reaction with water does not occur with _____.

A. Sodium

B. Cesium

C. Lithium

D. Potassium

15 / 40

15. The NH₃ molecule contains _____ lone pair(s) on nitrogen

A. Four

B. Three

C. One

D. Two

16 / 40

16. The modern periodic table contains _____ horizontal rows.

A. 6

B. 7

C. 5

D. 8

17 / 40

17. Formation of acidic oxides is not a property of _____.

A. Non-metals

B. Metalloids

C. Metals

D. Halogens

18 / 40

18. Electron affinity is affected by all except _____.

A. Effective nuclear charge

B. Atomic radius

C. Mass number

D. Electronic configuration

19 / 40

19. The correct formation equation of magnesium oxide is _____.

A. Mg − 2e⁻ → Mg²⁺ and O + 2e⁻ → O²⁻

B. Mg + 2e⁻ → Mg²⁻

C. Mg²⁺ + O²⁻ → Mg

D. Mg + O → MgO

20 / 40

20. Halogens possess _____ electron affinity

A. EndothermicExothermic

B. Zero

C. Positive

D. Exothermic

21 / 40

21. Electrovalent bonding occurs between atoms that readily _____ electrons.

A. Lose and attract

B. Donate and receive

C. Share B

D. Repel

22 / 40

22. Aircraft construction is not a use of _____

A. Magnesium

B. Titanium

C. Beryllium

D. Aluminium

23 / 40

23. Calcium oxide is not present in compounds of _____.

A. Calcium

B. Barium

C. Strontium

D. Magnesium

24 / 40

24. Higher hydrogen energies of alkaline earth metal ions result from _____.

A. Lower charge

B. Larger size

C. Weak bonding

D. Increased cationic charge

25 / 40

25. The second ionization energy of alkaline earth metals is lower due to _____.

A. Weak bonding

B. Closed shell stability

C. Larger size

D. High atomic mass

26 / 40

26. The second most abundant metal in seawater is _____

A. Sodium

B. Magnesium

C. Calcium

D. Potassium

27 / 40

27. Highest electropositivity among alkali metals is shown by _____.

A. Lithium

B. Sodium

C. Potassium

D. Cesium

28 / 40

28. Periodicity of elemental properties based on atomic number is called _____.

A. Periodic trend

B. Classical law

C. Modern periodic law

D. Atomic theory

29 / 40

29. A radioactive and extremely rare element among alkaline earth metals is _____.

A. Radium

B. Strontium

C. Magnesium

D. Calcium

30 / 40

30. Energy change accompanying electron addition to a gaseous atom is known as _____.

A. Electronegativity

B. Electron charge

C. Electron affinity

D. Ionization energy

31 / 40

31. Classification of elements by Mendeleev was based on _____.

A. Chemical properties

B. Atomic size

C. Atomic number

D. Physical properties

32 / 40

32. Hydrogen bonding does not cause _____

A. Low boiling point

B. Strong intermolecular force

C. High boiling point

D. Association

33 / 40

33. Increasing order of boiling points of Li, Cs, Rb and K is _____

A. Rb < Cs < K < Li

B. Li < K < Rb < Cs

C. K < Cs < Rb < Li

D. Cs < K < Rb < Li

34 / 40

34. Hydrogen bonding occurs when hydrogen is linked to _____.

A. Sodium, oxygen and nitrogen

B. Nitrogen, oxygen and fluorine

C. Carbon, oxygen and sulphur

D. Boron, carbon and nitrogen

35 / 40

35. Strong cohesive forces in lithium do not result in _____.

A. Softness

B. Hardness

C. High melting point

D. Strength

36 / 40

36. Metal used in photography compounds is _____.

A. Magnesium

B. Calcium

C. Potassium

D. Sodium

37 / 40

37. Increase in principal quantum number results in _____ atomic radius.

A. Increasing

B. Decreasing

C. Zero

D. Constant

38 / 40

38. Higher first ionization energy of alkaline earth metals is due to _____.

A. Higher nuclear charge

B. Lower charge

C. Electron shielding

D. Larger radius

39 / 40

39. Reaction of alkali metal hydrides with water liberates _____.

A. Hydrogen

B. Nitrogen

C. Carbon dioxide

D. Oxygen

40 / 40

40. Elimination of anomalous positions of elements was achieved using _____.

A. Valency

B. Atomic number

C. Atomic mass

D. Density

Your score is

3.9 7 votes

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2 Comments

Oldest

Newest Most Voted

Ernest

1 year ago

Please I don’t know if it is the website or my phone. It’s hard to change my answers. When I tried doing so, it might end up picking another answer or just not pick any. Meanwhile an indicator shows that one answer has been picked. In the end the website shows that I didn’t answer the question in the end.

Author

ARUWAJI PHILIP

Reply to Ernest

I’m really sorry you’re going through this. I’ll look into it ,but I doubt if the issue is from my website.

CHM 101 CBT Practice Questions for FUOYE Students(Now Active)

📘 CHM 101 PRACTICE TEST – IMPORTANT INSTRUCTIONS

📝 Test Details

⚠️ EXAM STRATEGY & TIPS

📊 GRADING SCALE

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