JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Some Basic Concepts of Chemistry

Choose the Incorrect Statement about Dalton's Atomic Theory

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

Answer: (A)

Solution

Dalton's atomic theory states that atoms of different elements combine in simple, fixed whole-number ratios to form a given compound (law of definite/constant composition) — not "in any ratio." So the statement that compounds form "in any ratio" is the incorrect one.

JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Single correct option

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