MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryMole _ Equivalent ConceptStrength of Solution
With increase of temperature, which of these changes?
A.molality
B.weight fraction of solute✓ Correct
C.fraction of solute present in unit volume of water
D.mole fraction.
Explanation
With change in temperature, volume changes. ∴ with increase in temperature, fraction of solute present in unit volume of water changes. The correct option is (c) 112. Molarity and Normality changes with temperature because they involve : (a) Moles (b) equivalents (c) weights (d) volumes Volume changes with change in temperature. ∴ Molarity and Normality changes with temperature because they involve volumes. The correct option is (d) 113. Normality of 0.74 g Ca(OH)₂ in 5 mL solution is (a) 8 N (b) 4 N (c) 0.4 N (d) 2 N No. of equivalent 0.74 2 0.02 74 x ∴Normality 3 0.02 0.02 1000 4
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