BF₃ is a planar and an electron deficient compound. Hybridization and number of electrons around the central atom, respectively are:

1. sp² and 6

2. sp² and 8

3. sp³ and 4

4. sp³ and 6

Match List - I with List - II

Choose the correct answer from the options given below

From the following pairs of ions which one is not an iso-electronic pair?

1. Mn²⁺, Fe³⁺

2. Fe²⁺, Mn²⁺

3. O^2-, F^-

4. Na⁺, Mg²⁺

The non-polar molecule among the following is-

1. SbCl₅

2. NO₂

3. POCl₃

4. CH₂O

Which of the following set of molecules will have zero dipole moment?

1.  Boron trifluoride, hydrogen fluoride,  carbon dioxide, 1 3-dichlorobenzene

2.  Nitrogen trifluoride, beryllium difluoride,  water, 1 3 -dichlorobenzene

3.  Boron trifluoride, beryllium difluoride, carbon dioxide, 1 4-dichlorobenzene

4.  Ammonia, beryllium difluoride, water,  1, 4-dichlorobenzene

Match the following :

Which of the following is the correct option? 

A molecule that can not exist is-

1. ${\mathrm{Li}}_2$

2. ${\mathrm{C}}_2$

3. ${\mathrm{O}}_2$

4. ${\mathrm{He}}_2$

Among the compounds shown below which one will have a linear structure?

1. NO₂

2. HOCl

3. O₃

4. N₂O

Match the coordination number and type of hybridization with the distribution of hybrid orbitals in space based on Valence bond theory.

Identify the wrongly matched pair.