Question

Hybridization involves:
(A) Addition of an electron pair
(B) Mixing up of atomic orbital
(C) Removal of an electron pair
(D) Separation of orbital

Answer 1

Orbital hybridization is the concept of mixing atomic orbitals into new hybrid orbitals (with different energies, shapes, etc., than the component atomic orbitals) suitable for the pairing of electrons to form chemical bonds in valence bond theory.

Complete answer:
Hybridization is the process of producing a hybrid. A hybrid, in general sense, is any of mixed origin or composition, or the combination of two or more different things. Merging of dissimilar orbitals of different energies to form new orbitals is known as hybridization and the new orbital forms are known as hybrid orbitals. They have similar energy.
Hybridization allows for the most stable structure. When there are hybrid orbitals there are enough electrons to complete the necessary bonds regardless of whether there is a suitable number of valence electrons. Hybridization occurs when an atom bonds using electrons from both the s and p orbitals, creating an imbalance in the energy levels of the electrons. This is a process in which atomic orbitals are mixed to form new identical orbitals that are identical in energy.
Originally Answered: what is the shortcut formula for finding hybridization? Hybridization=1/2(valence electron in central atom no. Of atoms attached to the central atom by single bond negative charge-positive charge).
So, the correct answer is (B) Mixing up of the atomic orbital.

Note:
Hybridization only occurs in response to bond formation ; an atom will not just spontaneously hybridize on its own. Further, an atom will only hybridize if hybridization leads to the formation of a more stable (lower energy) molecule.