NEET Chemistry: Ionic Bonding Practice Questions
15 free multiple-choice questions on Ionic Bonding (Chemical Bonding and Molecular Structure) for NEET Chemistry, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more NEET questions in the app →Q1. In the formation of an ionic compound, which of the following must be conserved?
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Correct answer: B — Total number of electrons (charge neutrality)
For an ionic bond to form, the overall charge of the resulting compound must be zero, meaning the total number of positive charges (cations) must equal the total number of negative charges (anions).
Q2. In the formation of an ionic bond, the electron transfer occurs from the element with the lower electronegativity to the element with the higher electronegativity. This transfer is primarily driven by the tendency to achieve a stable electronic configuration. Which principle governs this directional transfer?
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Correct answer: D — Octet Rule
The formation of an ionic bond is fundamentally driven by the desire of atoms to achieve the stable electron configuration of the nearest noble gas, which is summarized by the Octet Rule (or duet rule for H and He).
Q3. The electrostatic attraction between oppositely charged ions in an ionic solid is fundamentally an example of which type of bonding?
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Correct answer: D — Ionic bonding
The interaction between ions is the definition of ionic bonding.
Q4. Which factor generally increases the electrostatic attraction between the cation and the anion in an ionic bond?
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Correct answer: D — Increasing the magnitude of the ionic charges
According to Coulomb's Law, the force of attraction is directly proportional to the product of the charges (magnitude of charges). Higher magnitude charges lead to stronger attraction.
Q5. Which pair of elements is most likely to form an ionic compound?
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Correct answer: B — Na and Cl
Sodium (Na) and Chlorine (Cl) have a large difference in electronegativity, favoring the complete transfer of electrons and the formation of an ionic bond (NaCl).
Q6. When forming an ionic bond, the resulting cation always has a charge that is:
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Correct answer: D — Positive
Cations are formed when a neutral atom loses electrons, resulting in a net positive charge.
Q7. In an ionic crystal lattice, the forces of attraction between the ions are described as:
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Correct answer: B — Electrostatic forces
The stability of an ionic crystal is maintained by strong electrostatic forces of attraction between the positively and negatively charged ions.
Q8. Ionic compounds generally possess which of the following properties when in the solid state?
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Correct answer: A — High melting point and high boiling point
The strong electrostatic forces holding the ions in a fixed lattice require a large amount of energy to break, resulting in high melting and boiling points.
Q9. Which force is primarily responsible for holding the oppositely charged ions together in an ionic crystal lattice?
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Correct answer: D — Electrostatic attraction
Ionic bonds are formed by the strong electrostatic attraction between oppositely charged ions (cations and anions). This force acts throughout the entire crystal structure.
Q10. When elements form an ionic compound, the resulting lattice structure is held together by strong electrostatic forces. The energy required to break this lattice apart is known as:
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Correct answer: B — Lattice Energy
Lattice energy is the energy released when gaseous ions combine to form one mole of a solid ionic crystal lattice.
Q11. The stability of an ion is related to its ability to hold a specific charge. Which of the following is generally considered the most stable configuration for an ion?
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Correct answer: C — Having a complete octet
The Octet Rule dictates that most atoms achieve greater stability by having a complete outer shell of eight valence electrons.
Q12. Which of the following pairs represents a cation and an anion?
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Correct answer: D — Na⁺ and Cl⁻
A cation is a positively charged ion (Na⁺), and an anion is a negatively charged ion (Cl⁻).
Q13. In the formation of an ionic bond between two elements, the stability of the resulting crystal lattice is largely determined by which factor?
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Correct answer: D — The difference in electronegativity
The stability of the ionic lattice (related to lattice energy) is heavily influenced by the electrostatic attraction, which is directly proportional to the charge magnitude and inversely related to the internuclear distance (related to atomic size and charge). While electronegativity difference is key for bond formation, lattice stability involves the overall energy consideration related to ion radii and charge distribution.
Q14. Which of the following pair represents a typical ionic compound?
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Correct answer: A — MgO
Magnesium Oxide (MgO) is formed by the transfer of electrons between Mg and O, characteristic of an ionic bond. H2O and CH4 are covalent, and O2 is a molecule.
Q15. Which statement correctly describes the stability gained by forming an ionic compound?
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Correct answer: A — It results from the complete transfer of electrons
Ionic compounds achieve stability by attaining a stable noble gas configuration (octet rule) for both the cation and anion through the transfer of electrons.
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