Amongst the following statements, that which was not proposed by Dalton was :
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- Matter consists of indivisible atoms all the atoms of a given element have.
- Chemical reactions involve reorganization of atoms. These are neither created not destroyed in a chemical reaction.
- When gases combine or reproduced in a chemical reactionn they do so in a simple ratio by volume provided all gases are the same T & P.
- Identical properties including identical mass. Atoms of differemt element differ in mass.
The Correct Option is C
Solution and Explanation
Statement 2 (chemical reactions involve reorganisation of atoms, which are neither created nor destroyed) was proposed by Dalton.
Statement 4 (atoms of different elements differ in mass and other properties) was proposed by Dalton.
Statement 3 (gases combine in a simple ratio by volume at the same T and P) is Gay-Lussac's law of combining volumes, which Dalton's theory did not contain (it was later explained by Avogadro).
Answer: (C)
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