(D) The statement "$A$ given compound always contains the same proportion of elements by mass" refers to the $Law \ of \ definite \ proportions$. This

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(D) The statement "$A$ given compound always contains the same proportion of elements by mass" refers to the $Law \ of \ definite \ proportions$. This law states that a chemical compound always consists of the same elements combined together in the same fixed proportion by mass,regardless of its source or method of preparation. For example,water $(H_2O)$ always contains hydrogen and oxygen in a mass ratio of $1:8$.

Class 11 Chemistry Some Basic Concepts of Chemistry Laws of chemical combination

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"$A$ given compound always contains the same proportion of elements" is a statement of $-$

MHT CET 2024 All MHT CET

A
Law of combining volumes of gases
B
Law of conservation of mass
C
Law of multiple proportions
D
Law of definite proportions

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Class 11

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Some Basic Concepts of Chemistry

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Laws of chemical combination

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$A$ sample of pure carbon dioxide,irrespective of its source,contains $27.27\%$ carbon and $72.73\%$ oxygen. This data supports:

MediumAIIMS 1992

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Irrespective of the source,a pure sample of water always yields $88.89\%$ mass of oxygen and $11.11\%$ mass of hydrogen. This is explained by the law of

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$45.4 \ L$ of dinitrogen reacts with $22.7 \ L$ of dioxygen to form $45.4 \ L$ of nitrous oxide. For the reaction $2N_{2(g)} + O_{2(g)} \to 2N_2O_{(g)}$,identify the law followed and state the law.

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Which of the following pairs of compounds illustrates the law of multiple proportions?

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In $SO_2$ and $SO_3$,the masses of oxygen that combine with $48 \, g$ of sulfur are respectively ......... .

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"$A$ given compound always contains the same proportion of elements" is a statement of $-$

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$A$ sample of pure carbon dioxide,irrespective of its source,contains $27.27\%$ carbon and $72.73\%$ oxygen. This data supports:

Irrespective of the source,a pure sample of water always yields $88.89\%$ mass of oxygen and $11.11\%$ mass of hydrogen. This is explained by the law of

$45.4 \ L$ of dinitrogen reacts with $22.7 \ L$ of dioxygen to form $45.4 \ L$ of nitrous oxide. For the reaction $2N_{2(g)} + O_{2(g)} \to 2N_2O_{(g)}$,identify the law followed and state the law.

Which of the following pairs of compounds illustrates the law of multiple proportions?

In $SO_2$ and $SO_3$,the masses of oxygen that combine with $48 \, g$ of sulfur are respectively ......... .

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