SURFACE CHEMISTRY Set 3

Adsorption may be monolayered or multilayered ✘ Particle size of adsorbent will not effect the amount of adsorption ✘ Increase of pressure increases the amount of adsorption ✘ Increase of temperature may decrease the amount of adsorption ✔ NULL ✔ NULL NULL

Ostwald process ✘ Contact process ✘ Thermite process ✘ None of these ✔ NULL ✔ NULL NULL

Liquid      gas ✘ Gas        liquid ✘ Liquid        liquid ✘ Solid        liquid ✔ NULL ✔ NULL NULL

Gel ✘ Solidified emulsion ✘ Solid solution ✘ Sol ✔ NULL ✔ NULL NULL

It forms monolayer ✘ It is reversible in nature ✘ It occurs at low temperature ✘ None of the above ✔ NULL ✔ NULL NULL

Are microporous aluminosilicates ✘ Have general formula
 x  ✘ Have pore sizes between 260 pm to 740 pm ✘ All of the above ✔ NULL ✔ NULL NULL

Linseed oil ✘ Linolin ✘ Glycogen ✘ Rubber ✔ NULL ✔ NULL NULL

Adsorption ✘ Enthalpy ✘ Absorption ✘ None of these ✔ NULL ✔ NULL NULL

DP-gas, DM-liq. ✘ DP-liquid DM-solid ✘ DP-gas, DM-gas ✘ DP-solid, DM-solid ✔ NULL ✔ NULL NULL

The rate of dissociation of adsorbed molecules from the surface does not depend on the surface covered ✘ The adsorption at a single site on the surface may involve multiple molecules at the same time ✘ The mass of gas striking a given area of surface is proportional to the pressure of the gas ✘ The mass of gas striking a given area of surface is independent of the pressure of the gas ✔ NULL ✔ NULL NULL