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pls explain................................................................

pls explain................................................................

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Grade:12

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
ΔTF=ixm×KF
ΔTF=i×Kf
for ionic compounds vant Hoff factors is equal to the number of discrete ions in a formula unit of the substance.
In First option 1 number of ions =2
In second option 2 Number of ions =1
In third option 3 Number if ions =4
In forth option 4 Number if ions =3
So, value if i will be lowest for A and B 
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