JEE Main 8 April 2017 Paper Solved Paper
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Question : 37 of 90
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5 g of N a 2 S O 4 was dissolved in x g of H 2 O The change in freezing point was found to be 3.82 ° C .If N a 2 S O 4 is 81.5 % ionised,the value of x
(k f for water = 1.86 C k g m o l − 1 ) is approximately : (molar mass of S = 32 g m o l − 1 and that of N a = 23 g m o l − 1 )
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[Main 8 April 2017]
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