Description : Comprehension # 1 Many lyophilic sols and few lyophobic sols when coagulated under some special conditions changes into semi rigid mass, enclosing who
Last Answer : Comprehension # 1 Many lyophilic sols and few lyophobic sols when coagulated under some special ... . thixotropy C. double decompostion D. peptization
Last Answer : Comprehension # 1 Many lyophilic sols and few lyophobic sols when coagulated under some special ... B. synersis C. coagulation D. thixotropy
Last Answer : Comprehension # 1 Many lyophilic sols and few lyophobic sols when coagulated under some special conditions ... Calcium acetate C. Hair gel D. Cheese
Description : Give the conect order of initials T(true) or F(false) for following statements [3] I : Lyophobic sols are irreversible sols. II : Micelles fonnation t
Last Answer : Give the conect order of initials T(true) or F(false) for following statements [3] I : Lyophobic sols are irreversible ... F C. T T T T D. T T F T
Description : Assertion :- Lyophilic sol is more stable than lyophobic sol. Reason :- Lyophilic sol have greater solvation energy then lyophobic sol.
Last Answer : Assertion :- Lyophilic sol is more stable than lyophobic sol. Reason :- Lyophilic sol have greater ... D. If both Assertion & Reason are False.
Description : Gold number of some lyophilic sols are : Which has maximum protective power :
Last Answer : Gold number of some lyophilic sols are : Which has maximum protective power : A. I B. II C. III D. IV
Description : Choose the correct reason(s) for the stability of the lyophobic colloidal particles.
Last Answer : Choose the correct reason(s) for the stability of the lyophobic colloidal particles. A. ... layer of opposite charges around the colloidal particles.
Description : Lyophobic Colloids
Last Answer : Lyophobic Colloids :- Those colloids which are solvent hating. It is irreversible Sols.
Description : Assertion Colloidal sols scatter light while true solutions do not. Reason The particles in the colloidal sol move slower than that of the true solutions. -Chemistry
Last Answer : Both assertion and reason are true but the reason is not the correct explanation of assertion. The size of colloidal particles is large enough to scatter light while particles of a true solution are too small to scatter light.
Description : Which of the following sols is positively charged ?
Last Answer : Which of the following sols is positively charged ? A. Arsenious sulphide B. Aluminium hydroxide ... D. Silver iodide in silver nitrate solution
Description : Which of the following are hydrophobic sols ?
Last Answer : Which of the following are hydrophobic sols ? A. Protein sol B. Gold sol C. Gum sol D. `Fe(OH)_(3)` sol
Description : Which one of the following statements is false for hydrophilic sols?
Last Answer : Which one of the following statements is false for hydrophilic sols? A. they do not require ... that of dispersion medium. D. none of these
Description : Protective sols are :
Last Answer : Protective sols are : A. lyophilic B. lyophobic C. both (A) and (B) D. none of (A) and (B)
Description : What type of colloidal sols are formed in the following ? (i) Sulphur vapours are passed through cold water. (ii) White of an egg is mixed with water. (iii) Concentration of soap solution is increased.
Last Answer : (i) Multimolecular colloid (ii) Macromolecular colloid (iii) Associated colloid.
Description : Dialysis is a method of purification of sols. But prolonged dialysis of the sol makes it unstable. Why ?
Last Answer : Ans. Traces of electrolytes in the sol, impart charge to dispersed phase particles making it stable. Prolonged dialysis removes all electrolytes thus making the sol unstable.
Description : Assertion :- Lyophilic sol coagulate by adding other solvent. Reason :- Lyophilic sol are stable due to hydration energy.
Last Answer : Assertion :- Lyophilic sol coagulate by adding other solvent. Reason :- Lyophilic sol are stable due to ... D. If both Assertion & Reason are False.
Description : The protcting power of lyophilic colloidal solution is expressed in terms of
Last Answer : The protcting power of lyophilic colloidal solution is expressed in terms of A. Critical number B. ... number C. Coagulation value D. Gold number
Description : Lyophilic sol are
Last Answer : Lyophilic sol are A. Irreversible sols B. They are prepared from inorganic compound C. Coagulated by adding electrolytes D. Self-stabilizing
Description : Which of the following is/are not true for lyophilic colloid ?
Last Answer : Which of the following is/are not true for lyophilic colloid ? A. These are prepared ... electrolyte is sufficient to cause precipitation of these.
Description : Among the following number of correct statements are : (i) Stability of lyophilic colloids is mainly due to the strong interaction between dispersed p
Last Answer : Among the following number of correct statements are : (i) Stability of lyophilic colloids is ... solution is lesser than that of dispersion medium.
Description : which of the following statements is correct for a lyophilic solution?
Last Answer : which of the following statements is correct for a lyophilic solution? A. It is not easily solvated B ... unstable D. It is quite stable in a solvent
Description : Lyophilic Colloids
Last Answer : Lyophilic Colloids : Those colloids which are solvents loving or attracting they are reversible Sols.
Description : The protecting power of lyophilic colloidal sol is expressed in terms of (1) Oxidation number (2) Coagulation value (3) Gold number (4) Critical miscelle concentration
Last Answer : Gold number