What happens when a beam of light is passed through a colloidal sol?

1 Answer

Answer :

What happens when a beam of light is passed through a colloidal sol?

Related questions

Description : What is observed (i) When a beam of light is pressed through a colloidal sol (ii) An electrolyte, NaCl is added to hydrated ferric oxide sol. (iii) Electric current is passed through colloidal sol.

Last Answer : Ans.: (i) Tyndal Effect (iv) Coagulation (v) Electrophoresis

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 : 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 : 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 : 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 : A colloidal system in which a liquid is dispersed in a liquid is called – (1) gel (2) emulsion (3) sol (4) precipitate

Last Answer : (2) emulsion Explanation: An emulsion is a mixture of two or more liquids that are normally immiscible (nonmixable or unblendable). Emulsions are part of a more general class of two-phase ... ). Examples of emulsions include vinaigrettes, milk, mayonnaise, and some cutting fluids for metal working.

Description : SnO2 forms a positively charged colloidal sol in acidic medium and a negatively charged sol in the basic medium. Why ? 

Last Answer : Ans. SnO2 is amphoteric in nature. It reacts with acid eg. HCl to form SnCl4 in the solution. The common Sn4+ ions are adsorbed on the surface of SnO2 particles giving them a positive ... solution. The stannate ions are adsorbed on the surface of SnO2 particles giving them a negative charge. 

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 : If an electric field is applied to a colloidal sol, the dispersed phase particles are found to move towards the electrode of opposite charge. If however, the dispersed phase is made stationary, the ... move in the opposite direction. What is the term used for such movement of dispersion medium ?

Last Answer : Ans. Electro osmosis. 

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

Description : A colloidal system in which a liquid is dispersed in a liquid is called (1) gel (2) emulsion (3) sol (4) precipitate

Last Answer : emulsion

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 parallel beam, of light of wavelength 100 nm passed through a sample of atomic hydrogen gas in ground state. (a) Assume that when a phton supplies s

Last Answer : A parallel beam, of light of wavelength 100 nm passed through a sample of atomic hydrogen gas ... of radiation that may be detected by the detector.

Description : A liquid is found to scatter a beam of light but leaves no residue when passed through the filter paper. What can the liquid be described as ?

Last Answer : Ans. Colloid. 

Description : A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen. Which one of the following is the color of light that undergoes the greatest deviation from its original direction? Is it: A. Red B. yellow C. Blue D. violet Engineering

Last Answer : A. Red

Description : A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen. Which one of the following is the color of light that undergoes the greatest deviation from its original direction. Is it: w) red x) yellow y) blue z) violet

Last Answer : ANSWER: W -- RED

Description : When a beam of ordinary white light is passed through a Polaroid plate filter, the intensity of the beam that emerges is: w) equal to that of the incident beam x) about 0.9 that of the incident beam y) about one-half that of the incident beam z) practically zero

Last Answer : ANSWER: Y -- ABOUT ONE-HALF THAT OF THE INCIDENT BEAM 

Description : What happens to a gold sol if gelatin is added to it ?

Last Answer : Ans. It causes stabilisation of gold sol. 

Description : Laptop screen doesn't light up but I can log on, am I SOL?

Last Answer : Its probably fixable however it will most likely be cheaper to get a new laptop I’d imagine.

Description : Light scattering takes place in – (1) Colloidal solutions (2) Acidic solutions (3) Electrolyte solutions (4) Basic solutions

Last Answer : (1) Colloidal solutions Explanation: Light scattering in colloidal solutions or particles in suspension is known as Tyndall Effect. It is similar to Rayleigh scattering, in that the intensity of the ... fourth power of the frequency, so blue light is scattered much more strongly than red light.

Description : Which of the following refers to the scattering of light by colloidal particles? w) Rutherford effect x) Tyndall effect (pron: tin-dahl) y) Thompson effect z) none of these

Last Answer : ANSWER: X -- TYNDALL EFFECT

Description : Light scattering takes place in (1) Colloidal solutions (2) Acidic solutions (3) Electrolyte solutions (4) Basic solutions

Last Answer : Colloidal solutions

Description : What happens when air is passed through lime water? -Science

Last Answer : it turns milky white. and the product obtained is calcium carbonate + water

Description : What happens HCl gas passed through saturated NaCl solution?

Last Answer : Ans. NaCl will be precipitated out.

Description : What happens when excess of carbon dioxide gas is passed through lime water? (a) Lime water first turns milky and then colorless (b) Lime water turns bluish me water turns milky (d) Lime water turns blackish

Last Answer : (a) Lime water first turns milky and then colorless

Description : What happens, when SO2is passed through a solution of H2S in water? (A) Precipitation of sulphur takes place (B) H2SO3is formed (C) Oleum is formed (D) None of these

Last Answer : (A) Precipitation of sulphur takes place

Description : Is it safe to mix Pine Sol and Javex?

Last Answer : These should not be mixed. The MSDS for Pine Sol says it should not be mixed with bleach-containing products. I had to look Javex up, but found that it is bleach (basically Clorox). Mixing these together can cause harmful chlorine gas which can irritate the eyes and more.

Description : Why did the use these particular syllables in the do,re,me,fa,sol,la,ti,do series ?

Last Answer : Huh?

Description : Solve for x: Sol. 3x/7 + 2/7 + 4(x + 1)/5 = 2/3(2x + 1) -Maths 9th

Last Answer : Solution :-

Description : How to differentiate between sol, solution and suspension? -Chemistry 9th

Last Answer : CharacteristicsSolSolutionSuspensionMixture TypeHeterogeneousHomogeneousHeterogeneousParticle size10-7 - 10-5cmLess than 1nmMore than 100nmTyndall effectExhibits the Tyndall effectDoes not exhibit the Tyndall effectMay or may ... , blood, smokeSalt solution, Sugar solutionSand in water, dusty air

Description : what It is the sol-fa syllable of the note placed on the ledger line below the staff?

Last Answer : sorry guys if i put a wrong sentence dont read the what just read the beggining in it

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 : 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 : Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3)` is negatively charge. Reason :- Due to adsorption of `S^(-2)`

Last Answer : Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3) ... Reason is False. D. If both Assertion & Reason are False.

Description : The coagulating power of electrolytes having ions `Na^(+),Al^(3+)` and `Ba^(2+)` for aresenic sulphide sol increases in the order :-

Last Answer : The coagulating power of electrolytes having ions `Na^(+),Al^(3+)` and `Ba^(2+)` for aresenic sulphide sol increases ... `Al^(3+)lt Na^(+)lt Ba^(2+)`

Description : Gold number of haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated by 10 ml of 10% NaCl solution

Last Answer : Gold number of haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated ... B. 30 mg C. 0.30 mg D. 3 mg

Description : An example solid sol of

Last Answer : An example solid sol of A. Butter B. Hair cream C. Paint D. Gem stones

Description : Haemoglobin and gold sol are examples of

Last Answer : Haemoglobin and gold sol are examples of A. negatively charged sols B. positively charged ... D. negatively and positively charged sol, repectively

Description : For coagulation of arsenious sulphide sol, which one of the following salt solution will be most effective ?

Last Answer : For coagulation of arsenious sulphide sol, which one of the following salt solution will be most effective ? A. `Na_( ... (3)` C. `BaCl_(2)` D. `NaCl`

Description : The most appropriate method of making egg-albumin sol is :

Last Answer : The most appropriate method of making egg-albumin sol is : A. Keep the egg in boiling water for 10 ... of `5%` w/V saline solution and stir well.

Description : The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` and `Ba^(2+)` for arsenic sulphide sol increases in the order

Last Answer : The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` and `Ba^(2+)` for arsenic sulphide sol ... `Al^(3+) lt Na^(+) lt Ba^(2+)`

Description : Among the electrolytes `Na_(2),SO_(4),CaCl_(2),Al_(2)(SO_(4))_(3) and NH_(4)Cl`, the most effective coagulating agent for `Sb_(2)S_(3)` sol is

Last Answer : Among the electrolytes `Na_(2),SO_(4),CaCl_(2),Al_(2)(SO_(4))_(3) and NH_(4)Cl`, the most effective coagulating ... `Al_(2)(SO_(4))_(3)` D. `NH_(4)Cl`

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 : Select the only incorrect option for gold sol.

Last Answer : Select the only incorrect option for gold sol. A. (II) (ii) (P) B. (II) (iii) (S) C. (III) (iv) (S) D. (II) (iii) (Q)

Description : Select the only correct option `Fe(OH)_(3)` sol.

Last Answer : Select the only correct option `Fe(OH)_(3)` sol. A. (I) (iii) (Q) B. (IV) (i) (Q) C. (I) (iii) (R) D. (IV) (iv) (S)

Description : Select the only incorrect option for `Agl//I^(-)` sol.

Last Answer : Select the only incorrect option for `Agl//I^(-)` sol. A. (II) (ii) (P) B. (IV) (iv) (P) C. (II) (iii) (S) D. (IV) (iii) (Q)

Description : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts

Last Answer : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe ... colloids. D. They become negatively charged colloids.

Description : The minimum concentration of an electrolyte required to cause coagulation of a sol is called its flocculation value. It is expressed in millimoles per

Last Answer : The minimum concentration of an electrolyte required to cause coagulation of a sol is called its ... )` sol so that flocculation just starts ?

Description : For the just coagultion of 250 mL of `Fe(OH)_(3)` sol, 2 mL of `1 M Na_(2)SO_(4)` electrolyte is required. What is the coagulating value of `Na_(2)SO_

Last Answer : For the just coagultion of 250 mL of `Fe(OH)_(3)` sol, 2 mL of `1 M Na_(2)SO_(4)` ... What is the coagulating value of `Na_(2)SO_(4)` electrolyte.

Description : Coagulation value of the electrolytes `AlCl_(3)` and NaCl for `As_(2)S_(3)` sol are 0.093 and 52 respectively. How many times `AlCl_(3)` has greater c

Last Answer : Coagulation value of the electrolytes `AlCl_(3)` and NaCl for `As_(2)S_(3)` sol are 0.093 ... `AlCl_(3)` has greater coagulating power than NaCl?