> II > I > IV c) I > II > III > IV d) none of these . Collodion is a % solution of which one of the following compounds in alcohol – ether mixture? a) Nitroglycerine b) Cellulose acetate c) Glycoldinitrate d) Nitrocellulose . Which one of the following is an example for homogeneous catalysis?
a) manufacture of ammonia by Haber’s process b) manufacture of sulphuric acid by contact process c) hydrogenation of oil d) Hydrolysis of sucrose in presence of dil HCl XII U10-Surface XII U10-Surface - - - - . Match the following A) V O i) High density polyethylene B) Ziegler – Natta ii) PAN C) Peroxide iii) NH D) Finely divided Fe iv) H SO A B D a) (iv) (i) (ii) (iii) b) (i) (ii) (iv) (iii) c) (ii) (iii) (iv) (i) d) (iii) (iv) (ii) (i) . The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As S are given below (I) (NaCl)= (II) ( (BaCl )= . (III) (MgSO )= .
The correct order of their coagulating power is a) III > II > I b) I > II > III c) I > III > II d) II > III>I . Adsorption of a gas on solid metal surface is spontaneous and exothermic, then a) ∆ H increases b) ∆ S increases c) ∆ G increases d) ∆ S decreases . 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? a) x m=f(P) at constant T b) x m=f(T) at constant P c) P = f(T) at constant m x d) x m PT .
On which of the following properties does the coagulating power of an ion depend ? (NEET – ) a) Both magnitude and sign of the charge on the ion. b) Size of the ion alone c) the magnitude of the charge on the ion alone d) the sign of charge on the ion alone. .