Which mixture of gases at room temperature does not obey Dalton's law of partial pressure?
A
NO2andO2
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B
NH3andHCl
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C
COandCO2
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D
SO2andSO3
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Solution
The correct option is BNH3andHCl Dalton's law of partial pressure states that in a mixture of non-reacting gas, the total pressure exerted is equal to the sum of the partial pressure of the individual gases.
Since NH3 and HCl are reacting gases, hence they don't obey Dalton's law of partial pressure.