In PO43- ion, the formal charge on each oxygen atom and P-O bond order respectively are

(a) -0.75, 0.6

(b) -0.75, 1.0

(c) -0.75, 1.25

(d) -3.1, 1.25

Concept Questions :-

Formal Charge and Coordinate Bond
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The dielectric constant of H2O is 80. The electrostatic force of attraction between Na+ and Cl- will be

(a) reduced to 140 in water than in air

(b) reduced to 180 in water than in air

(c) will be increased to 80 in water than in air

(d) will remain unchanged

Concept Questions :-

Ionic Bonding
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Which of the following is isoelectronic ? 

(a) CO2, NO2

(b) NO2-, CO2

(c) CN-, CO

(d) SO2, CO2

Concept Questions :-

Types of Bonding
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


In an octahedral structure, the pair of d orbitals involved in d2sp3-hybridisation is

(a) dx2-y2, dz2

(b) dxy, dx2-y2

(c) dz2, dxz

(d) dxy, dyz

Concept Questions :-

Covalent Bonding
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Equilateral shape has

(a) sp hybridisation

(b) sp2 hybridisation

(c) sp3 hybridisation

(d) dsp2 hybridisation

Concept Questions :-

Covalent Bonding
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


AsF5 molecule is trigonal bipyramidal. The hybrid orbitals used by As-atoms for bonding are

(a) dx2-y2, dz2, s, px, py

(b) dxy, s,px, py, pz

(c) s, px, py, pz, dxy

(d) dz2, s, px, py, pz

Concept Questions :-

Covalent Bonding
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Overlap of which of the following atomic orbitals would be maximum to form the strongest
covalent bond.

(1) 1s-2s (σ)

(2) 1s-2p (σ)

(3) 2p-2p (π)

(4) 2p-2p (σ)

Concept Questions :-

Covalent Bonding
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The types of hybrid orbitals of nitrogen in NO2+, NO3- and NH4+ respectively are expected to be

(1) sp, sp3 and sp2

(2) sp, sp2 and sp3

(3) sp2, sp and sp3

(4) sp2, sp3 and sp

Concept Questions :-

Hybridisation
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character varies as

(1) LiCl < BeCl2 > BCl3 > CCl4

(2) LiCl > BeCl2 < BCl3 < CCl4

(3) LiCl < BeCl2 < BCl3 < CCl4

(4) LiCl > BeCl2 > BCl3 > CCl4

Concept Questions :-

Acid, Base and Fajan's Rule
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Which of the following statement is not correct from the view point of molecular orbital theory ?

(1) Be2 is not a stable molecule

(2) He2 is not a stable but He2+ is expected to exist.

(3) Bond strength of N2 is maximum amongst the homonuclear diatomic molecules belonging to the second period.

(4) The order of energies of molecular orbitals in N2 molecule is

 s2s < s*2s < s2pz < (p2px=p2py) < (p*2px=p*2py) < s*2pz  

Concept Questions :-

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: