Which of the following mixtures of gases at room temperature follow Dalton's law of partial pressures?
A
NO and O2
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B
CO and CO2
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C
NH3 and HCl
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D
SO2 and O2
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Solution
The correct option is BCO and CO2 CO and CO2 are non-reacting gases at room temperature. They follow Dalton's law of partial pressures which is valid only for non-reacting gases. The gases given in options (A), (C) and (D) are reacting gases at room temperature. They do not follow Dalton's law of partial pressures.