6.0 g of urea (molecular weight=60) was ...

6.0 g of urea (molecular weight=60) was dissolved in 9.9 moles of water. If the vapour pressure of pure water is `P^@`, the vapour pressure of solution is :

`0.10P^@`

`1.10 P^@`

`0.90P^@`

0.99`P^@`

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