The carboxylic acid present in butter is

The Latin name of vinegar is____?

Radioactive disintegration of uranium ultimately results in formation of

Blood has been formed isotonic with

Tetraethyl lead is used as___?

Which allotrope of carbon is in rigid three dimensional structure to?

Sodium metal is kept under?

_____ discovered inert gases.

A mixture of water and alcohol can be separated by?

Who was the inventor of electron microscope?

The region covered by water is known as