The degree of dissociation of Ca(NO3) in dilute aq.sol. containing 7.0 g of the salt per 100 g of water at 100oC is 70%. If the vapour pressure of water at 100oC is 760 mm. The vapour pressure of solution is
(A) 730
(B) 735
(C) 760
(D) 746
The degree of dissociation of Ca(NO3) in dilute aq.sol. containing 7.0 g of the salt per 100 g of water at 100oC is 70%. If the vapour pressure of water at 100oC is 760 mm. The vapour pressure of solution is
(A) 730
(B) 735
(C) 760
(D) 746