
Concept explainers
Interpretation: The postulate of the Dalton’s atomic theory which is no longer scientifically accepted needs to be identified.
Concept Introduction: Theory is a group of connected ideas or concepts intended to describe something. It involves question- “why” or “how anything/ somethings happens. It is based on inference.

Answer to Problem 2STP
Correct answer: The correct option is B.
Explanation of Solution
Reason for correct option:
Dalton’s atomic theory was proposed by John Dalton. According to the Dalton’s atomic theory, matter is composed of tiny particles, all atoms of certain element are identical, compound contains more than one element. In this theory, atoms were tiny, hard spheres that vary in size as well as mass, but can’t be split into smaller pieces.The atom is the smallest unit of matter that can take part in a
So, the correct option is (B).
Reasons for incorrect options:
Option A: This option is not categorized in Dalton’s theory.So, this is an incorrect option.
Option C: This option is not categorized in Dalton’s theory.So, this is an incorrect option.
Option D: This option is not categorized in Dalton’s theory.So, this is an incorrect option.
Chapter 3 Solutions
World of Chemistry
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