MCQ
Laws of Chemical Combination
By Sakshi Goel | 18 May'20 | 962 Views
MCQ
Problem:
Solution:
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Which of the following pairs of substances illustrate the law of multiple proportions?
(a) MgO and Mg(OH)2
(b) H2O and D2O
(c) NaCl and NaBr
(d) CO and CO2
Solution:
In CO, 12 parts of carbon combines with 16 parts of oxygen.
In CO2, 12 parts of carbon combines with 32 parts of oxygen.
So, the ration of oxygen in both the compounds is 1:2. This illustrates law of multiple proportions.
Correct option is (d).
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