Chemical Bonding & Molecular Structure MCQ - 1 (Advanced) - JEE MCQ

Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:

Which of the following are true?

Which of the following factors are responsible for origination of van der Waals forces?

Among the following, the element which show inert-pair effect are.

Most ionic compounds have :

Which of the following statement(s) is/are correct regarding ionic compounds ?

A, B, C are three substances. A does not conduct electricity in the solid, molten state and aqueous solution B. Conducts electricity both in the fused and aqueous states, while C conducts electricity only in the aqueous state. In solid state neither B nor C conducts electricity. Which of the following statements is/are true regarding A, B and C ?

Which of the following conditions apply to resonating structures ?

Which of the following statement is/are correct

Which of the following compounds possesses zero dipole moment ?

Resonance occurs due to the

Which of the following have dipole moment ?

What is the state of hybridisation of Xe in cationic part of solid XeF₆

According to MOT (Molecular Orbital Theory), the molecular orbitals are formed by mixing of atomic orbitals through LCAO (linear combination of atomic orbitals). The correct statement(s) about molecular orbitals is/are

Statement (A) :bonding molecular orbitals are formed by addition of wave-functions of atomic orbitals of same phase

Statement (B) : anti-bonding molecular orbitals are formed by subtraction of wave-functions of atomic orbitals of same phase

Statement (C) : non-bonding molecular orbitals do not take part in bond formation because they belong to inner shells

Statement (D) : anti-bonding molecular orbitals provide stability to molecules while bonding molecular orbitals make the molecules unstable.

Among the following the maximum covalent character is shown by the compound 

Match the Column

Column-I       Column-II

(A) ICl₃          (P) Hybridisation of central atom is similar in both dimer and monomer form.

(B) AlCl₃       (Q) Both monomer and dimer forms are planar

(C) AlF₃        (R) In dimer form all atoms are sp³ hybridised.

(D) NO₂        (S) Does not exist in dimer form

 Match the Column

Column-I               Column-II

(Type of orbital) (Orbitals involved in hybridisation)

(A)        (P) sp³ (Tetrahedral)

(B) s - orbital        (Q) sp³d² (Octahedral)

(C)                (R) sp³d (TBP)

(D) p_y - orbital      (S) dsp² (square planar)

Hydrogen bonding originates from the dipole-dipole interaction between H-atom and any of the other atom like F, O, N and in some cases with Cl atom. There are two types of H-bonding like intermolecular and intramolecular H-bonding

Which of the following molecule does not consist of intramolecular H-bonding.

Hydrogen bonding originates from the dipole-dipole interaction between H-atom and any of the other atom like F, O, N and in some cases with Cl atom. There are two types of H-bonding like intermolecular and intramolecular H-bonding

Which of the following plot for r (density) v/s T (temperature) for liquid H₂O is correct.

Hydrogen bonding originates from the dipole-dipole interaction between H-atom and any of the other atom like F, O, N and in some cases with Cl atom. There are two types of H-bonding like intermolecular and intramolecular H-bonding

Which of following statement is incorrect

Phosphorus forms different halide compounds with halogens. In crystalline state some of them exist as ion pairs.

What is hybridisation of central atom of anionic part of PBr₅ in crystalline state.

Phosphorus forms different halide compounds with halogens. In crystalline state some of them exist as ion pairs.

What is the difference between bond angles in cationic species of PCl₅ and PBr₅in solid state.

Phosphorus forms different halide compounds with halogens. In crystalline state some of them exist as ion pairs.

All possible bond angles in anionic part of PCl₅ are