Account for the bond angle of 180° in BeCl₂ molecule?

What is hybridization of (CH₃ – CH₃) ?

63.

What mode of hybridisation of carbon is present in CO₂?

Out of ethane, ethene and ethyne, which has shorter carbon-carbon bond length?

What mode of hybridisation of P is present in PCl₃ ?

What is the shape of sulphate ion?

What is Sigma bond ?

How many  bonds are present in the molecules of:
(i)  O₂   and    (ii) N₂?

What type of bond is possible between a filled orbital and an empty orbital?

Draw the shapes of the following hybrid orbitals: sp, sp², sp³.