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

Question:

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

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

2. chemical reactions involve reorganisation of atoms. These are neither created nor destroyed in a chemical reaction.

3. 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 $\mathrm{T} \& \mathrm{P}$.

4. matter consists of indivisible atoms.

Correct Option: , 3

Solution:

Option(3) is according to Gaylussac's law of volume combination.