Q.

Mole fraction of water in 46% (w/w) aqueous solution of ethanol is

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a

0.33

b

0.25

c

0.66

d

0.75

answer is D.

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Detailed Solution

WC2H5OH =46 g ;      WH2O =54 g ; nC2H5OH =4646 =1 ;      WH2O =5418 =3 ; Xwater=ni∑ ni=31+3=0.75 ;;
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