Carbon atoms in diamond are bonded to each other in a configuration:

Give the main characteristics of hybridization.

The geometry of the ammonia molecule and the hybridization of the nitrogen atom involved in it are:

What is the decreasing order of carbon-carbon single bond length in the following compounds?
$(I) CH_2 = CH - C \equiv CH$
$(II) CH \equiv C - C \equiv CH$
$(III) CH_3 - CH = CH_2$
$(IV) CH_2 = CH - CH = CH_2$

In which of the following changes is there no change in the hybridisation of the central atom?

Which orbital is more electronegative among $sp$,$sp^2$,and $sp^3$? Why?