Chemistry · Laws of chemical combination, Atomic and molecular masses
A pair of compounds which is an illustration of law of multiple proportions is:
A pair of compounds which is an illustration of law of multiple proportions is:
- A. \( H_{2} O \) and \( D_{2} O \)
- B. \( N a O H \) and \( K O H \)
- C. \( N a C l \) and \( N a B r \)
- D. \( C O \) and \( C O_{2} \)
Step-by-step solution
The law of multiple proportions states that when two elements form more than one compound, the masses of one element that combine with a fixed mass of the other are in the ratio of small whole numbers. In CO and CO2, carbon and oxygen combine in two different ratios: for a fixed mass of carbon, the mass of oxygen in CO is half that in CO2, giving a simple 1:2 ratio.
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