Question

which one is produce maximum depression of freezing point a.k2so4 b.nacl d.glucose c.urea

Answer 1

Maybe Pottasium Sulphate K2SO4

Answer 2

$\bold{\mathrm{K}_{2} \mathrm{SO}_{4}}$ produce ‘maximum depression’ of freezing point.

Option: (a)

Explanation:

• The depression in freezing point in solution depends on the ‘number of ions’ they break into in aqueous solution.

• With increase in the number of ions the depression of freezing point also increases. This molecule breaks into 3 ions.  

• Glucose and urea breaks into only one particle. Sodium chloride breaks into two ions.

• Hence the number of particles is maximum for Potassium sulphate and least for urea and glucose.  

• So the maximum depression of freezing point is maximum for Potassium sulphate.

Learn more about k2so4

To 100 ml of 0.1 M AgNO3 solution solid K2SO4 s added. The concentration of K2SO4 that shows precipitation is? (Ksp for Ag2SO4 = 6.4 * 10^-5 M)

(A) 0.1 M

(B) 6.4 * 10^-3 M

(C) 5.4 * 10^-7 M

(D) 6.4 * 10^-5 M

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Oxidation no. Of k2so4.al2(so4)3.24h2o

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