In water saturated air,the mole fraction of water vapour is $0.02$. If the total pressure of the saturated air is $1.2 \; atm$,the partial pressure of dry air is .....$atm$.

  • A
    $1.21$
  • B
    $1.76$
  • C
    $1.176$
  • D
    $0.98$

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