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  9. Q2297

RRB Junior Engineer / DMS / CMA 2019 · Question 2297 of 3719

Which postulate of Dalton's atomic theory is the result of the law of conservation of mass?

  1. AAtoms are indivisible particles, which cannot be created or destroyed in a chemical reactionCorrect
  2. BAll matter is made of very tiny particles called atoms, which participate in chemical reactions
  3. CAtoms of a given element are identical in mass and chemical properties
  4. DAtoms of different elements have different masses and chemical properties

Answer: A. Atoms are indivisible particles, which cannot be created or destroyed in a chemical reaction

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (28-May-2019 Shift 3) — cracku.in solved paper with answer key · reliable-secondary

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