Which of the following represents Avogadro's hypothesis ?

Options

A. Gases react together in volumes which bear a simple ratio to one another
B. One mole of all gases occupies 22.4 L at N.T.P.
C. Equal volumes of all gases under the same conditions of temperature and pressure contain equal number of atoms.
D. Equal volumes of all gases under the same conditions of temperature and pressure contain equal number of molecules

Answer

A

Explanation

Gases react together in volumes which bear a simple ratio to one another