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Syllabus

a) T < 359 K

b) T > 359 K

c) T < 373 K but > 359 K

d) Unpredictable

Answer given is b. Kindly explain how

K2SO4 , NaCl , NH2CONH2 , C6H12O6

(A) Aluminium Chloride (B) Potassium Sulphate

(C) Ammonium Chloride (D) Urea

CAL THE DEPRESSION IN FREEZING POINT IF 0.003 KG OF ACETIC ACID WAS ADDED TO 00 CM CUBE OF WATER AND ONLY 23 ACETIC ACID WAS DISSOCIATED?( GIVEN KF IS 1.86 K KG /MOL AND DENSITY OF WATER IS 0.997 G / L)_{A}^{o}: P_{B}^{o}= 1 : 2 and mole fractions in liquid phase as X_{A}: X_{B}= 1 : 2, then mole fraction of A in vapour phase will bea) 0.33

b) 0.25

c) 0.52

d) 0.2

Answer is d please explain how

Q.The correct expression representing the relation between thevan't Hoff factor (

i) and the degree of dissociation (α) of a weak electrolyteMaNbisQ.The correct expression representing the relation between thevan't Hoff factor (

i) and the degree of dissociation (α) of a weak electrolyteMaNbis