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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
Question
The following data are obtained when dinitrogen and dioxygen react together to form different compounds:
 
Mass of dinitrogen
Mass of dioxygen
(i)
14g
16g
(ii)
14g
32g
(iii)
28g
32g
(iv)
28g
80g
Which law of chemical combination is obeyed by the above experimental data?
Give its statement.
✓

Answer

If we fix the mass of dinitrogen at 28g, then the masses of dioxygen that will combine with the fixed mass of dinitrogen are 32g, 64g, 32g, and 80g.
The masses of dioxygen bear a whole number ratio of 1 : 2 : 2 : 5.
Hence, the given experimental data obeys the law of multiple proportions.
The law states that if two elements combine to form more than one compound, then the masses of one element that combines with the fixed mass of another element are in the ratio of small whole numbers.

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