Free Chemical Bonding MCQs with Answers

• A. proton, innermost shell
• B. nucleus, system
• C. nucleus, outermost shell
• D. proton, system

Explanation: The atomic radius of a chemical element is a measure of the size of its atom, usually the mean or typical distance from the center of the…

• A. polar
• B. non polar
• C. reactive
• D. non reactive

Explanation: All of the halogens exist as diatomic molecules. This means that the elements are made up of pairs of atoms that are chemically joined…

• A. diffusion of Na+ ions
• B. oscillation of loose electrons
• C. excitation of free protons
• D. existence of body-centred cubic lattice

Explanation: Sodium is an element with symbol Na and atomic number 11. Sodium is a metal.

• A. Very low value of electrical conductivity in the molten state
• B. Brittle nature
• C. Very strong forces of interactions
• D. Anisotropic nature

Explanation: In molten state, the ionic solids have free ions in them. Ions help in the conduction of electricity.

• A. The force that acts between the different polar ends of molecules
• B. The force that acts within the same polar ends of molecules
• C. The attractive force that occurs between an ion and a dipole
• D. The force that acts between non polar molecules

Explanation: A dipole-dipole force is a force that acts between the different polar ends of molecules.

• A. sp3, sp, sp2
• B. sp, sp2, sp3
• C. sp3, sp2, sp
• D. sp2, sp3, sp

Explanation: The hybridisation of carbon atom in diamond, graphite and acetylene are respectively sp3, sp2, sp.

• A. 89pm
• B. 79.4pm
• C. 75.4pm
• D. 80.0pm

Explanation: Eventually, a state corresponding to the distance of 75.4pm is reached, where the attractive forces dominate the repulsive forces.

• A. two
• B. three
• C. four
• D. five

Explanation: Remember that the lower potential energy increases the stability of the system.

• A. Ionic bond
• B. Covalent bond
• C. Metallic bond
• D. Dipole Dipole forces

Explanation: These intermolecular forces bring the molecules close together and give particular physical properties to the substances in gaseous…

• A. Hess' law
• B. Born Habers Cycle
• C. Law of Mass action
• D. Law of conservation of mass

Explanation: The Born Haber cycle is a cycle of enthalpy change of process that leads to the formation of a solid crystalline ionic compound from the…

• A. recessive, higher
• B. dominate, minimum
• C. dominate,maximum
• D. recessive, lower

Explanation: When two atoms bond to form a stable compound, they will be more thermodynamically stable than the reactants and thus will have less…

• A. Van Der Waals Forces
• B. Hydrogen bonding
• C. Ionic interactions
• D. Dipole dipole attraction

Explanation: Option B is correct, as H-bonding stabilizes DNA structure as it is between bases in a complementary base pair as well as it stabilizes…

• A. H2S
• B. SiH4
• C. NH3
• D. HI

Explanation: Hydrogen bonding occurs in those substances in which a highly electronegative atom (such as Fluorine (F), Oxygen (O) or Nitrogen (N)) is…

• A. PH4+, NH3, SO3, Benzene
• B. CH4, NH4 +, MnO4- , NF3
• C. Ethene, H2O, BeCl2, H2S
• D. SO2, C2H4, BF3, NO3-

Explanation: The question asks for species that have NON-PLANAR geometry so, those structures which are planar are to be eliminated.

• A. Oxygen is paramagnetic in character.
• B. Nuclear charger of oxygen is greater than nitrogen.
• C. Oxygen has higher electron affinity.
• D. In oxygen, there exists repulsion between pair of electrons present in the same orbital of valence shell.

Explanation: Option A is factually correct but has no bearing on ionization energy. Option B is factually correct as oxygen has one more proton in its…

• A. Trigonal planar.
• B. Tetrahedral.
• C. Bent(or angular).
• D. Trigonal pyramidal.

Explanation: To determine the shape of the molecule, you must find the number of bonding pairs of electrons and lone pairs of electrons.

• A. Higher binding energy.
• B. Strong metallic bonding.
• C. Hardness.
• D. All of these.

Explanation: Transition elements are characterized by their partially filled d orbitals, which provide them with unique properties, including higher…

• A. Unit.
• B. Unit cell
• C. Unit crystal.
• D. All of these options are correct.

Explanation: A 'unit cell' is the smallest group of atoms that has the overall symmetry of a crystal, and from which the entire lattice can be built up…

• A. Space lattice.
• B. Crystal lattice.
• C. Lattice sites.
• D. Lattice location.

Explanation: A 'lattice point' is a point at the intersection of two or more gridlines in a regularly spaced array of points, which is a point lattice.

• A. Methane.
• B. Neon.
• C. Ammonia.
• D. Ethane-ethyl alcohol.

Explanation: Dipole-dipole interactions occur when the partial charges formed within one molecule are attracted to an opposite partial charge in a…