Chemistry · Structure of Atom

JEE Main 2024 — 4 April, Shift 2 — Question 69

Choose the incorrect statement about Dalton's Atomic Theory:

Option A:
Compounds are formed when atoms of different elements combine in any ratio.
Correct
Option B:
All the atoms of a given element have identical properties including identical mass.
Option C:
Matter consists of indivisible atoms.
Option D:
Chemical reactions involve recorganization of atoms.

Answer: A

Dalton's postulates state that atoms combine in simple whole-number ratios to form compounds.

Statement A says atoms combine in any ratio, which contradicts Dalton’s theory.

Statements B, C and D are consistent with Dalton’s postulates.

Hence, option A is incorrect.

Answer key and solution verified before publishing.

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