TN State Board Samacheer Kalvi Online Test for 12th Std - Chemistry - English - Surface Chemistry

Question 1 Of 10

The phenomenon observed when a beam of light is passed through a colloidal solution is ………….

Cataphoresis Electrophoresis Coagulation Tyndall effect

Question 2 Of 10

Which one of the following characteristics are associated with adsorption?

∆G and ∆H are negative but ∆S is positive ∆G and ∆S are negative but ∆H is positive ∆G is negative but ∆H and ∆S are positive ∆G. AH and ∆S all are negative.

Question 3 Of 10

The most effective electrolyte for the coagulation of As2S3 Soils

NaCl Ba(NO3)2 K3[Fe(CN)6] AI2(SO4)3

Question 4 Of 10

Adsorption of a gas on solid metal surface is spontaneous and exothermic, then ……………

∆H increases ∆S increases ∆G increases ∆S decreases

Question 5 Of 10

For freudlich isotherm a graph of log (frac{x}{m}) is plotted against log P. The slope of the line and its y – axis intercept respectively corresponds to

(1 / n), k log (1 / n), k (1 / n), log k log (1 / n), log k

Question 6 Of 10

On which of the following properties does the coagulating power of an ion depend?

Both magnitude and sign of the charge on the ion. Size of the ion alone the magnitude of the charge on the ion alone the sign of charge on the ion alone.

Question 7 Of 10

Which one of the following is an example for homogeneous catalysis?

manufacture of ammonia by Haber’s process manufacture of sulphuric acid by contact process hydrogenation of oil Hydrolysis of sucrose in presence of all HCI

Question 8 Of 10

If x is the amount of adsorbate and m is the amount of adsorbent, which of the following relations is not related to adsorption process?

x/m = f(P) at constant T x/m = f(T) at constant P P = f(T) at constant x/m x/m = PT

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Chemistry - English Medium - Surface Chemistry

Samacheer Kalvi 12th Chemistry - Surface Chemistry - Book Back Questions in English Medium