Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O2 and 2 g H2 confined in a total volume of one litre at 0°C is : [Given R = 0.082 L atm mol -1 K -1 , T = 273 K ]

1. A. 2.602
2. B. 25.18
3. C. 26.02
4. D. 2.518

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