Free Chemical Bonding MCQs with Answers

• A. Directional
• B. Multidirectional
• C. Bidirecional
• D. Non directional

Explanation: Four covalent bonds are directed towards four corners of a regular tetrahedron. Covalent bonds are directional.

• A. M2A
• B. M3A2
• C. MA2
• D. M2A3

Explanation: The compound formed has the formula M3A2. The cation M has a charge of +2, and the anion A has a charge of -3.

• A. 0
• B. 2
• C. 3
• D. 4

Explanation: In ammonia (NH₃), the nitrogen atom has five valence electrons, and each of the three hydrogen atoms contributes one valence electron.

• A. Both CO2 and SO2 are linear and non polar
• B. CO2 is angular and polar SO2 is linear and non-polar
• C. CO2 in linear and non-polar SO2 is angular and polar
• D. Both CO2 and SO2 are angular and polar

Explanation: In CO2, two oxygen atoms are bonded with carbon atom and the geometry will be linear.O=C=OBut, in SO2, although 2 oxygen atoms are bonded…

• A. NaCl
• B. KCI
• C. MgBr
• D. Diamond

Explanation: The covalent crystal is also known as atomic crystals because it is between same atoms. NaCl, KCl and MgBr are ionic crystals.

• A. ionic bond
• B. hydrogen bond
• C. Covalent bond
• D. Van der Waal forces

Explanation: Molecular forces have both hydrogen bonding and Van der Waal forces between them.

• A. Addition of electron to (CI)
• B. Addition of electron to (C|*)
• C. Addition of electron to (O)
• D. Addition of electron to (O-1)

Explanation: Electron affinity is the energy change associated with adding an electron to a neutral atom to form a negative ion.

• A. NH3
• B. BF3
• C. H2O
• D. BeCl2

Explanation: In BF3 Boron (B) forms three sigma bonds with three fluorine (F) atoms.

• A. Mg
• B. S
• C. P
• D. Na

Explanation: The correct answer is sulfur (S) because it has the smallest atomic radius among the given options.

• A. E2
• B. E1
• C. SN2
• D. SN1

Explanation: SN1 reactions exhibit a characteristic of 50% inversion and 50% retention of configuration due to the backside attack of the nucleophile.

• A. Propanal
• B. Acetone
• C. Formaldehyde
• D. Acetaldehyde

Explanation: Formaldehyde can readily form hydrates due to its small size and ability to engage in hydrogen bonding.

• A. Hydrogen bonds
• B. Covalent bonds
• C. Co-ordinate covalent bonds
• D. Van Der Waal's Force

Explanation: In solid H2, the force of attraction among H2 molecules is primarily due to Van der Waals forces.

• A. Dipole-dipole forces
• B. Dipole-induced dipole forces
• C. Instantaneous dipole-induced dipole forces
• D. Non-polar forces

Explanation: The correct type of forces that exist between iodine molecules (I₂) is C.

• A. 242 KJ/mol
• B. 431 KJ/mol
• C. 436 KJ/mol
• D. 346 KJ/mol

Explanation: So, the correct bond energy of hydrogen in an H2 molecule is C. 436 KJ/mol.

• A. Alkaline earth metals
• B. Alkali metals
• C. Chalcogens
• D. Halogens

Explanation: The correct answer is indeed B, alkali metals. Among the options provided, the alkali metals, specifically cesium (Cs), have the highest…

• A. Methanal and Ethanol
• B. Propane and Ethyl Methyl Ketone
• C. Amine and H2O
• D. Acetone and Acetaldehyde

Explanation: Option C is correct. Amines and water can form hydrogen bonds due to the presence of hydrogen atoms attached to the electronegative…

• A. Trigonal planar
• B. Tetrahedral
• C. Trigonal Pyramidal
• D. Linear

Explanation: Option C is correct. If there are three bond pairs and one lone pair of electrons then the molecular shape of that molecule is trigonal…

• A. HCl
• B. HF
• C. HBr
• D. HI

Explanation: The correct option is B as the decreasing order of bond dissociation energy is HF > HCl > HBr > HI.

• A. 1.34A°
• B. 1.10A°
• C. 1.54A°
• D. 1.82A°

Explanation: The bond length between double-bonded carbon atoms is 1.34A°, which reflects the nature of double bonds being shorter due to increased…

• A. Mg3N2
• B. Be3N2
• C. Ca3N2
• D. Ba3N2

Explanation: Be3N2 is a covalent compound as Be and N have a small difference in electronegativity atoms and are more likely to share electrons rather…