Description : Which colloidal solution is used in photography?
Last Answer : Colloidal silver bromite
Description : Which colloidal solution is commonly used as germ killer? -Do You Know?
Last Answer : colloidal solution is commonly used as germ killer soo therefore the option a is correct
Description : Which chemical used as a ‘fixer’ in photography? -Do You Know?
Last Answer : Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate—commonly called hypo—and ammonium thiosulfate—commonly used in modern rapid fixer formulae.
Description : Explain why particles of a colloidal solution do not settle down when left undisturbed, while in the case of a suspension they do? -Maths 9th
Last Answer : The colloidal particles are smaller and not heavy. They always remain in a state of zig-zag motion, called Brownian movement, which counters the force of gravity acting on colloidal particles and ... particles of suspension are larger, heavy and have less movement, thus settle down due to gravity.
Description : Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is homogenous system.
Last Answer : Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is ... . D. If both Assertion & Reason are False.
Description : Colloidal solution show in `H_(2)O` :-
Last Answer : Colloidal solution show in `H_(2)O` :- A. Paramagnetism B. Scttering of light (tyndall effect) C. Refraction D. All of these
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 : Soaps essentially form a colloidal solution in water and remove the greasy matters by :
Last Answer : Soaps essentially form a colloidal solution in water and remove the greasy matters by : A. adsorption B. emulsification C. coagulation D. absorption
Description : The volume of a colloidal particle `V_C` as compared to the volume of a solute particle in a true solution `V_S` could be
Last Answer : The volume of a colloidal particle `V_C` as compared to the volume of a solute particle in a true solution `V_S` could ... `~ 10^(-3)` D. `~ 10^(3)`
Description : A colloidal solution can be purified by the following method :
Last Answer : A colloidal solution can be purified by the following method : A. dialysis B. peptization C. filtration D. oxidation
Description : Colloidal solution of gold prepared by different methods of different colours because of :
Last Answer : Colloidal solution of gold prepared by different methods of different colours because of : A ... particles D. impurities produced by different methods
Description : Fog is a colloidal solution of (a) liquid in gas (b) solid in gas (c) gas in solid (d) gas in liquid
Last Answer : Ans:(a)
Description : The medicines are most effective, if they are administered in the (a) colloidal state (b) solid state (c) solution state (d) gaseous state
Description : (2) Fat is dispersed in water Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed ... Milk is an emulsified colloid of liquid butterfat globules dispersed within a water-based solution.
Last Answer : The presence of ozone in the stratosphere is responsible for – (1) increasing the average global temperature in recent years (2) higher rate of photosynthesis (3) checking the penetration of ultra-violet rays to the earth (4) supplying oxygen for people travelling in jets
Description : An emulsion is a colloidal solution of - (1) Liquid in liquid (2) Solid in liquid (3) Gas in solid (4) Solid in Solid
Last Answer : (1) Liquid in liquid Explanation: An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable). Emulsions are part of a more general class ... of emulsions include vinaigrettes, homogenized milk, mayonnaise, and some cutting fluids for metal working.
Description : An alloy is an example of : (1) Colloidal solution (2) Emulsion (3) Solid solution (4) Heterogeneous mixture
Last Answer : (3) Solid solution Explanation: A Solid solution is a uniform mixture of substances in solid form.
Description : When a strong beam of light is passed through a colloidal solution, the light will – (1) be scattered (2) pass unchanged (3) be absorbed (4) be reflected
Last Answer : (1) be scattered Explanation: When a strong beam of light is passed through a colloidal solution, the light will be scattered.
Description : Which colloidal solution is commonly used as germ killer?
Last Answer : Colloidal sulphur
Description : A colloidal solution formed between two liquids is called?
Last Answer : Emulsion
Description : How can a colloidal solution and true solution of the same colour be distinguished from each other?
Last Answer : Ans.: By Tyndal effect( colloidal solution will scatter light and path becomes lighted where as no such phenomena is observed in true solution.)
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 : A sol is prepared by addition to excess AgNO3 solution in KI solution. What charge is likely to develop on the colloidal particles ?
Last Answer : Ans. Positive.
Description : The colloidal solution of gold prepared by different methods have different colours. Why ?
Last Answer : Ans. Due to difference in the size of colloidal particles.
Description : Colloids or Colloidal Solution
Last Answer : Colloids or Colloidal Solution : A heterogeneous solution in which dispersed phase mixed in dispersion medium.
Description : Non-colloidal solution is an example of the __________ fluid. (A) Non-Newtonian (B) Newtonian (C) Dilatent (D) Pseudo-plastic
Last Answer : (B) Newtonian
Description : Which of the following is a Newtonian fluid? (A) Rubber latex (B) Sewage sludge (C) Quicksand (D) Non-colloidal solution
Last Answer : (D) Non-colloidal solution
Description : What is colloidal solution?
Last Answer : Ans: A solution in which solute particles are bigger than those present in a true solution and which cannot be filtered id called a colloidal solution.
Description : High molecular weight, pharmacodynamically inert, nonantigenic substances which form colloidal solution are used as: A. Osmotic purgatives B. Osmotic diuretics C. Plasma expanders D. All of the above
Last Answer : C. Plasma expanders
Description : Choose the correct statement about osmotic diuretics: A. They are large molecular weight substances which form colloidal solution B. Their primary site of action is collecting ducts in the ... C. They increase water excretion without increasing salt excretion D. They can lower intraocular pressure
Last Answer : D. They can lower intraocular pressure
Description : One property a colloidal dispersion has that a solution does not is: w) homogeneity x) filterability y) the Tyndall effect z) osmotic pressure
Last Answer : ANSWER: Y -- THE TYNDALL EFFECT
Description : 1. Who among the following was an eminent Painter? 2. Which colloidal solution is commonly used as germ killer? 3. Which is an insectivorous plant? 4. Which is a north flowing river? 5. Who ... activity in India found? 20. Where did the Indian National Army (I.N.A.) come into existence?
Last Answer : Answer : 1. Sarada Ukil 2. Colloidal sulphur 3. Pitcher plant 4. Chambal 5. Sir John Lawrence 6. Dr. B. N. Rao 7. Syndicate Bank 8. Bharatnatyam 9. Karnataka to Tamil Nadu 10. Lord Mayo ... . Lala Lajpat Rai 16. January 27 17. Land Development Bank 18. Colloidal state 19. Dalmia hill 20. Singapore
Description : An emulsion is a colloidal solution of (1) Liquid in liquid (2) Solid in liquid (3) Gas in solid (4) Solid in Solid
Last Answer : Liquid in liquid
Description : A substance which readily forms colloidal solution in contact with water is called (1) Extrinsic colloid (2) Associated colloid (3) Hydrophobic colloid (4) Hydrophilic colloid
Last Answer : Hydrophilic colloid
Description : When a strong beam of light is passed through a colloidal solution, the light will (1) be scattered (2) pass unchanged (3) be absorbed (4) be reflected
Last Answer : be scattered
Description : What is the cheapest underwater photography solution available?
Last Answer : You can buy one-time use underwater cameras for between $5 and $10. Depending on how many exposures they have, though, it might be cheaper in the long run to spend $100 or so on a waterproof ... for underwater photography it seems like you'd have to be willing to spend at least a couple hundred.
Description : Which complex ion is formed when undecomposed AgBr is washed with hypo solution in photography? (Comptt. All India 2013) -Chemistry
Last Answer : Sodium dithiosulphato argentate (I) complex is formed
Description : Colloidal gold: do you use it , what do you use it for and does it work?
Last Answer : This took me four seconds.
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 : Blood colloidal osmotic pressure mainly maintained by which plasma protein `:-`
Last Answer : Blood colloidal osmotic pressure mainly maintained by which plasma protein `:-` A. Globulin B. Albumin C. Fibrinogen D. Prothombin
Description : In domestic sewage, suspended solids, colloidal and dissolved materials constitute
Last Answer : In domestic sewage, suspended solids, colloidal and dissolved materials constitute A. 0.1 B. 0.056 C. 0.027 D. 0.001
Description : Who called larger colloidal particles of primitives sea as coacervates :
Last Answer : Who called larger colloidal particles of primitives sea as coacervates : A. Fox B. Oparin C. Empedcles D. Haldane
Description : Aerosol is a system of colloidal particles having a size of
Last Answer : Aerosol is a system of colloidal particles having a size of A. `5mum` B. `1-2 mum` C. less than `100 mum` D. more than `10 mum`
Description : Assertion :- Filtration of colloidal particles is not possible by filter paper. Reason :- Size of colloidal particle is less than filter paper pores.
Last Answer : Assertion :- Filtration of colloidal particles is not possible by filter paper. Reason :- Size of ... D. If both Assertion & Reason are False.
Description : Fog is a colloidal system of :-
Last Answer : Fog is a colloidal system of :- A. gas in liquid B. liquid in gas C. gas in gas D. gas in solid
Description : The colloidal system in which the disperse phase and dispersion medium are both liquids is known as :
Last Answer : The colloidal system in which the disperse phase and dispersion medium are both liquids is known as : A. an emulsion B. an areosol C. gel D. a foam
Description : Smoke is a colloidal sol of
Last Answer : Smoke is a colloidal sol of A. Gas dispersed in a solid B. solid dispersed in a gas C. solid dispersed in a liquid D. gas dispersed in a liquid
Description : The dispersed phase in colloidal iron (III) hydroxide and collodial gold is positively and negtively charged respectively with of the following statem
Last Answer : The dispersed phase in colloidal iron (III) hydroxide and collodial gold is positively and negtively ... readily than the iron (III) hydroxide sol.