Explain the tetravalency of carbon.

Fill in the blanks: Valency of Carbon is __________.

Explain why rotation about carbon-carbon double bond is hindered ?

Explain why the carbon -carbon bond in acetylene is shorter than the carbon-carbon bond in ethylene.

Which is the purest allotrope of carbon?

Why is a solution of potassium hydroxide used to absorb carbon dioxide evoled during the estimation of carbon present in an organic compound?

Explain why the thermal stabilities of alkaline earth metal carbonates increase down the group.

How do you explain the presence of all the six carbon atoms in glucose in a straight chain?

The four C-H bonds in methane are equivalent though carbon was different orbitals in bond formation. Explain.

What are the allotropes of carbon?