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Which postulate of Dalton’s atomic theor...

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

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The postulate of Dalton's “The relative number and kind of atoms in a given compound remains constant”. can explain the law of definite proportions.
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(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 ?

State the law of definite proportion.

Knowledge Check

  • According to Dalton's atomic theory, all matter whether an element, a compound or a mixture is composed of small particles called atoms which can neither be created nor destroyed during a chemical reaction. Dalton's theory provides a simple explanation for the laws of chemical combination. He used his theory to explain law of conservation of masses, law of constant proportions and law of multiple proportions, based on various postulates of the theory. Dalton was the first scientist to use the symbols for the elements in a very specific sense. When he used a symbol for an element he also meant a definite quantity of that element, that is one atom of that element. Which postulate of Dalton's atomic theory explains law of definite proportions?

    A
    Atoms of an element do not change during a chemical reaction.
    B
    The elements consist of atoms having fixed mass and the number and kind of atoms in a given compound is fixed.
    C
    Different elements have different kind of atoms.
    D
    Atoms are of various kinds.

  • PA SSAGE-III: According to Dalton's atomic theory, all matter whether an element, a compound or a mixture is composed of small particles called atoms which can neither be created nor destroyed during a chemical reaction. Dalton's theory provides a simple explanation for the laws of chemical combination. He used his theory to explain law of conservation of masses, law of constant proportions and law of multiple proportions, based on various postulates of the theory. Dalton was the first scientist to use the symbols for the elements in a very specific sense. When he used a symbol for an element he also meant a definite quantity of that element, that is one atom of that element. Which postulate of Dalton's atomic theory explains law of definite proportions?

    A
    Atoms of an element do not change during a chemical reaction.
    B
    An elements consists of atoms having fixed mass and the number and kind of atoms in a given compound is fixed.
    C
    Different elements have different kind of atoms.
    D
    Atoms are of various kinds.

  • Which of the following postulates of Dalton's atomic theory explains the law of constant proportion?

    A
    Atoms of given element are identical in mass and chemical properties.
    B
    Atoms combine in the ratio of small whole numbers to form compounds.
    C
    The relative number and kind of atoms are constant in a given compound.
    D
    All of these

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    Give the postulates of Dalton's atomic theory.

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    An important postulate of Dalton's atomic theory is

    Dalton's atomic theory was able to explain

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