Chemical Bonding MCQs Quiz (30 Questions) for TLT, ECT, PST, JEST Exam | General Science

Chemical Bonding — MCQs Quiz

Subject: Science (Chemistry)  |  Topic: Chemical Bonding (30 MCQs)

For TLT, ECT, PST, JEST & All Competitive Exams

Test your understanding of Chemical Bonding — Ionic and Covalent Bonds — with this interactive 30-MCQ quiz. Select your answer for each question, then click Submit at the end to instantly see your score.

Instructions: Select one option for each question. After answering all questions, click the Submit button below to see your obtained marks and correct/incorrect answers.

1. Which type of bond is formed by the transfer of electrons?

Covalent Bond Ionic Bond Metallic Bond Hydrogen Bond

2. An Ionic Bond usually forms between:

Two metals Two non-metals A metal and a non-metal Two noble gases

3. In a Covalent Bond, atoms:

Transfer electrons completely Share pairs of electrons Do not interact Lose all electrons

4. A positively charged ion formed by losing electrons is called a/an:

Anion Cation Molecule Isotope

5. Which of the following is an example of a Covalent compound?

NaCl KCl H₂O MgO

6. Which rule states that atoms tend to have 8 electrons in the outermost shell for stability?

Octet Rule Duet Rule Valence Rule Ionic Rule

7. Which elements are stable with only 2 electrons in their outer shell (exception to the Octet Rule)?

Oxygen and Nitrogen Sodium and Chlorine Hydrogen and Helium Carbon and Silicon

8. A negatively charged ion formed by gaining electrons is called a/an:

Anion Cation Proton Neutron

9. What is the chemical formula of common table salt, formed by an Ionic Bond?

H₂O NaCl CO₂ O₂

10. Which type of elements combine to form Covalent Bonds?

Metal and metal Metal and non-metal Non-metal and non-metal Noble gases only

11. Ionic compounds generally have:

Low melting points High melting points No melting point Negative melting points

12. Which of the following compounds can conduct electricity when dissolved in water?

Covalent compounds Ionic compounds Both equally Neither

13. In a Hydrogen molecule (H₂), how many electrons are shared between the two atoms?

One electron One pair (two electrons) Two pairs No electrons

14. Which electrons are mainly responsible for chemical bonding?

Core electrons Valence electrons Free electrons only Neutron-bound electrons

15. Which of the following best describes Sodium (Na) in the formation of NaCl?

It gains one electron It loses one electron It shares one electron It stays neutral

16. Which of the following best describes Chlorine (Cl) in the formation of NaCl?

It loses one electron It shares one electron It gains one electron It remains an anion permanently unstable

17. Ionic bonds are also known as:

Covalent bonds Metallic bonds Electrovalent bonds Hydrogen bonds

18. Which of these is generally true about Covalent compounds' melting/boiling points?

Generally very high Generally low Always equal to ionic compounds Cannot be determined

19. What is the chemical formula of Carbon Dioxide, a covalent compound?

CO CO₂ C₂O CO₃

20. Which of the following statements about Covalent compounds is correct?

They always form ions They usually do not conduct electricity They always conduct electricity They have no bonds at all

21. In Oxygen molecule (O₂), how many pairs of electrons are shared between the two atoms?

One pair Two pairs Three pairs No pairs

22. Metals tend to ___ electrons to form ionic bonds.

Share Gain Lose Destroy

23. Non-metals tend to ___ electrons to form ionic bonds.

Lose Gain Share equally Ignore

24. Which of the following best defines a molecule formed by a covalent bond?

A group of ions held by charge attraction Two or more atoms held together by shared electrons A single free-floating atom A cluster of neutrons

25. Which noble gas configuration do most atoms aim to achieve through bonding?

A stable outer shell like a noble gas A completely empty outer shell An unstable radioactive state A negative nucleus

26. Ionic compounds are typically formed in which physical state at room temperature?

Gas Solid Liquid Plasma

27. Which of the following is NOT an example of a covalent compound?

H₂O CO₂ NaCl O₂

28. Which of the following correctly completes: "In an ionic bond, oppositely charged ions attract each other due to ___."

Gravitational force Electrostatic force Magnetic force Nuclear force

29. Which of the following bonds is generally considered stronger in solid crystal form?

Covalent bond Ionic bond Both are always equal Neither has strength

30. What determines whether atoms will form an ionic or a covalent bond?

The color of the atoms Whether the atoms are metals or non-metals The size of the nucleus only The number of neutrons only

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