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3d series contains elements having atomi...

3d series contains elements having atomic numbers in the range of 21 to 30 or not?

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The correct Answer is:
C
Cryoscopic constant `K_f=DeltaT_f` of solution having unit molality of normal solutes
Molality of glucose solution in `( C)=(9xx1000)/((59-9)xx180)=1`
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