Single Choice

Which of the following is not the basic postulate(s) of Dalton's atomic theory?

AAtoms are neither created nor destroyed in a chemical reaction
BIn a compound, the relative number and kinds of atom are constant
CAtoms of all elements are alike, including their masses
Correct Answer
DEach element is composed of extremely small particles called atoms

Solution

Main assumptions or postulates of Dalton are :

All matter consists of indivisible particles called atoms.
Atoms of the same element are similar in shape and mass but differ from the atoms of other elements.
Atoms cannot be created or destroyed.
Atoms of different elements may combine with each other in a fixed, simple, whole number ratio to form compound atoms.
Atoms of the same element can combine in more than one ratio to form two or more compounds.
Atoms are the smallest unit of matter that can take part in a chemical reaction.

Hence option (C) is the correct answer.

SIMILAR QUESTIONS

Atoms and Molecules

Atoms of different elements combine in :

Atoms and Molecules

Dalton said that ___________ cannot be divided.

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State the postulates of Dalton's Atomic theory.

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Atomic theory of matter was given by ..............?

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Which postulate of Dalton's atomic theory can explain law of definite proportions?

Atoms and Molecules

Give the main postulates of Dalton's atomic theory.

Atoms and Molecules

Which of the following postulates of Dalton's atomic theory is challenged by the next generation's scientists?

Atoms and Molecules

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

Atoms and Molecules

Which part of Dalton's atomic theory came from the law of constant proportions given by Proust?

Atoms and Molecules

(a) State the various postulates of Dalton's atomic theory of matter. (b) Which postulate of Dalton's atomic theory can explain the law of conservation of mass? (c) Which postulate of Dalton's atomic theory can explain the law of constant proportions?

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