Q. Amongst the following statements, that which was not proposed by Dalton was:

(A) matter consists of indivisible atoms

(B) when gases combine or reproduced in a chemical reaction they do so in a simple ratio by volume provided all gases are at the same T & P.

(C) Chemical reactions involve reorganisation of atoms. These are neither created nor destroyed in a chemical reaction.

(D) all the atoms of a given element have identical properties including identical mass. Atoms of different elements differ in mass.