What is the valency of carbon?

What is the basis for the process of distillation?

In crystallization, the compound dissolved in a solvent is more soluble in what temperature?

Nucleophilic reagents behave as __________

A X color precipitate, which is Y in ammonium hydroxide indicates presence of chlorine. Identify X and Y.

Which is not used as an absorbent in adsorption chromatography?

Estimation of oxygen can be determined by Carius method.

Resonating structures are also known as __________ forms.