Amongst the following statements, that which was not proposed by Dalton was
- (A)matter consists of invisible 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 temperature & pressure✓ Correct
- (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
Answer: (B)
Solution
Dalton's atomic theory holds that matter is made of indivisible atoms, that atoms of a given element are identical in mass, that they combine in simple whole-number ratios, and that they are neither created nor destroyed in reactions. The statement that combining gases react in a simple ratio by volume at the same temperature and pressure is Gay-Lussac's law of combining volumes, which Dalton did not propose.
JEE Main · 2020 · 07 Jan 2020 · Shift 1 · Single correct option