Laws of Definite Proportions, Multiple Proportions
12g of carbon...
Question
12g of carbon combines with 64g sulphur to form CS2. 12g carbon also combines with 32g oxygen to form CO2. 10g sulphur combines with 10g oxygen to form SO2. These data illustrate the
A
Law of multiple proportions
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B
Law of definite proportions
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C
Law of reciprocal proportions
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D
Law of gaseous volumes
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Solution
The correct option is D Law of reciprocal proportions Given,
12gC combines with 64gS to give CS2
12gC combines with 32gO to give CO2
Also, 10gS combines with 10gO to give SO2
In CS2C:S=12:64=3:16
In CO2C:O=12:32=3:8
From, CS2 & CO2, S:O=16:8=2:1
Also in SO2S:O=10:10=1:1
⇒2:1 is multiple of 1:1
11×2=21
⇒ Law of reciprocal proportions is illustrated here.