Which of the following statement is not a postulate of Dalton's atomic theory?

An atom is the smallest particle and is indivisible.

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Atoms of all elements are identical.

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Atoms can neither be created nor be destroyed.

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Atoms take part in chemical reactions.

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Solution

The correct option is B Atoms of all elements are identical.
According to Dalton's atomic theory:
$∙$ An atom is the smallest particle which cannot be divided further, i.e., it is indivisible.

$∙$ Atoms of the same elements are identical but differ from that of other elements.

$∙$ Atoms can neither be created nor be destroyed.

$∙$ Atoms may or may not exist independently but they take part in chemical reactions.

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Similar questions

Which of the following is/are not a characteristic of atom suggested by John Dalton?

i. An atom is the smallest particle which cannot be divided further into smaller particles.

ii. Atoms of all the different elements are identical.

iii. Atoms can neither be created nor be destroyed.

iv. Atoms take part in Chemical Reaction.

Which of the following are true according to Dalton’s Atomic Theory?

(i) Atoms can neither be created nor destroyed in a chemical reaction.

(ii) Atoms of different elements have different masses and chemical properties.

(iii) Atoms can be broken down into smaller parts like Protons,Electons And Neutons .

(iv) Atoms of an element have variable chemical properties depending on the Chemical reactions

(v) The relative number and kinds of atoms vary in a given compound.

(vi) Atoms combine in the ratio of small whole numbers to form Compounds.

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