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

• A

  chemical reactions involve reorganization of atoms. These are neither created nor destroyed in a chemical reaction.
• B

  all the atoms of a given element have identical properties including identical mass. Atoms of different elements differ in mass.
• Correct answer
  C

  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.
• D

  matter consists of indivisible atoms.

Hence, the correct answer is option: 'C'.