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प्रश्न
Which of the following statements indicates that law of multiple proportion is being followed?
पर्याय
Sample of carbon dioxide taken from any source will always have carbon and oxygen in the ratio 1:2.
Carbon forms two oxides namely \[\ce{CO2}\] and \[\ce{CO}\], where masses of oxygen that combine with fixed mass of carbon are in the simple ratio 2:1.
When magnesium burns in oxygen, the amount of magnesium taken for the reaction is equal to the amount of magnesium in magnesium oxide formed.
At constant temperature and pressure 200 mL of hydrogen will combine with 100 mL oxygen to produce 200 mL of water vapour.
उत्तर
Carbon forms two oxides namely \[\ce{CO2}\] and \[\ce{CO}\], where masses of oxygen that combine with fixed mass of carbon are in the simple ratio 2:1.
Explanation:
The element, carbon, combines with oxygen to form two compounds, namely, carbon dioxide and carbon monoxide. In \[\ce{CO2}\], 12 parts by mass of carbon combine with 32 parts by mass of oxygen while in \[\ce{CO}\], 12 parts by mass of carbon combine with 16 parts by mass of oxygen.
Therefore, the masses of oxygen combine with a fixed mass of carbon (12 parts) in \[\ce{CO2}\] and \[\ce{CO}\] are 32 and 16 respectively. These masses of oxygen bear a simple ratio of 32:16 or 2:1 to each other.
This is an example of law of multiple proportion.
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संबंधित प्रश्न
The following data are obtained when dinitrogen and dioxygen react together to form different compounds:-
| Mass of dinitrogen | Mass of dioxygen | |
| (i) | 14 g | 16 g |
| (ii) | 14 g | 32 g |
| (iii) | 28 g | 32 g |
| (iv) | 28 g | 80 g |
(a) Which law of chemical combination is obeyed by the above experimental data?Give its statement.
(b) Fill in the blanks in the following conversions:
(i) 1 km = ______ mm = ______ pm
(ii) 1 mg = ______ kg = ______ ng
(iii) 1 mL = ______ L = _______ dm3
One of the statements of Dalton’s atomic theory is given below: “Compounds are formed when atoms of different elements combine in a fixed ratio”
Which of the following laws is not related to this statement?
(i) Law of conservation of mass
(ii) Law of definite proportions
(iii) Law of multiple proportions
(iv) Avogadro law
If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio.
Is this statement true?
If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio.
If yes, according to which law?
If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio.
Give one example related to this law.
Define the law of multiple proportions. Explain it with two examples. How does this law point to the existence of atoms?
A box contains some identical red coloured balls, labelled as A, each weighing 2 grams. Another box contains identical blue coloured balls, labelled as B, each weighing 5 grams. Consider the combinations AB, AB2, A2B and A2B3 and show that law of multiple proportions is applicable.
What is a combination reaction?
Which one of the following pairs of compounds illustrates the law of multiple proportion?
