The hybridization of P exhibited in PF₅ is sp^xd^y. The value of y is

The role depressants in ‘Froth Floatation method’ is to

If the radius of the 3^rd Bohr’s orbit of hydrogen atom r₃ and the radius of 4^th Bohr’s orbit is r₄. Then

Arrange the following in the decreasing order of their covalent character:

(A) LiCl
(B) NaCl
(C) KCl
(D) CsCl

Given below are two statements : One is labeled as Assertion A and the other is labeled as Reason R.

Assertion A: Zero orbital overlap is an out of phase overlap.

Reason R: It results due to different orientation / direction of approach or orbitals.                                                                     

In the light of the above statements, choose the correct answer from the options given below

Number of lone pairs of electrons in the central atom of SCl₂, O₃, ClF₃ and SF₆, respectively are: