What are colloids? What are its various properties -Science

What are colloids? What are its various properties -Science
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Colloid: A colloid is a heterogeneous mixture whose particles are not as small as solution but they are so small that cannot be seen by naked eye. When a beam of light is passed through a colloid then the path of the light becomes visible. For example milk, smoke etc.
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Elements that show the properties of both metals and non-metals are called (a) Allotropes (b) Metalloids (c) Alloys (d) Colloids

Description : Elements that show the properties of both metals and non-metals are called (a) Allotropes (b) Metalloids (c) Alloys (d) Colloids

Last Answer : Ans:(b)

Colloids are purified by (a) Peptisation (b) Coagulation (c) Condensation (d) Dialysis

Description : Colloids are purified by (a) Peptisation (b) Coagulation (c) Condensation (d) Dialysis

Last Answer : Ans:(d)

Colloids (a) Are true solutions (b) Are suspensions of one phase in another (c) Are two-phase systems (d) Contain only water soluble substances

Description : Colloids (a) Are true solutions (b) Are suspensions of one phase in another (c) Are two-phase systems (d) Contain only water soluble substances

Last Answer : Ans:(c)

Which colloids are solvent loving colloids? -General Knowledge

Description : Which colloids are solvent loving colloids? -General Knowledge

Last Answer : The answer is 'Lyophilic'

Which colloids are solvent loving colloids? -General Knowledge

Description : Which colloids are solvent loving colloids? -General Knowledge

Last Answer : answer:

Among the colloids cheese (C), milk (M) and smoke (S), the correct combination of the dispered phase and dispersion medium, respectively is :

Description : Among the colloids cheese (C), milk (M) and smoke (S), the correct combination of the dispered phase and dispersion medium, respectively is :

Last Answer : Among the colloids cheese (C), milk (M) and smoke (S), the correct combination of the dispered phase and ... , M : liquid in solid, S : solid in gas

Which of the following statements about colloids is False ?

Description : Which of the following statements about colloids is False ?

Last Answer : Which of the following statements about colloids is False ? A. When silver nitrate ... colloidal solution, colloidal particle will be precipitated.

Gold numbers of some colloids are : Gelatin : 0.005 - 0.01 , Gum Arabic : 0.15 - 0.25, Oleate : 0.04 - 1.0, Starch : 15 - 25. Which among these is a b

Description : Gold numbers of some colloids are : Gelatin : 0.005 - 0.01 , Gum Arabic : 0.15 - 0.25, Oleate : 0.04 - 1.0, Starch : 15 - 25. Which among these is a b

Last Answer : Gold numbers of some colloids are : Gelatin : 0.005 - 0.01 , Gum Arabic : 0.15 - 0.25, Oleate ... ? A. Gelatin B. Starch C. Gum Arabic D. Oleate

Gold numbers of protective colloids A, B, C and D are `0.50, 0.01, 0.10` and `0.005` respectively. The correct order of their protective powers is

Description : Gold numbers of protective colloids A, B, C and D are `0.50, 0.01, 0.10` and `0.005` respectively. The correct order of their protective powers is

Last Answer : Gold numbers of protective colloids A, B, C and D are `0.50, 0.01, 0.10` and `0.005` respectively. The correct ... lt A lt C` D. `D lt A lt C lt B`

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

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.

Which of the following are multimolecular colloids ?

Description : Which of the following are multimolecular colloids ?

Last Answer : Which of the following are multimolecular colloids ? A. Sulphur B. Egg albumin in water C. Gold sol D. Soap solution

Among the following number of correct statements are : (i) Stability of lyophilic colloids is mainly due to the strong interaction between dispersed p

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.

Is yogurt a solution suspension or colloids?

Description : Is yogurt a solution suspension or colloids?

Last Answer : Colloid

Water soluble molecular aggregates of lipids are known as (A) Micelle (B) Colloids (C) Sphingol (D) Mucin

Description : Water soluble molecular aggregates of lipids are known as (A) Micelle (B) Colloids (C) Sphingol (D) Mucin

Last Answer : Answer : A

The component of water potential which determine by the attraction between water and hydrating colloids.

Description : The component of water potential which determine by the attraction between water and hydrating colloids.

Last Answer : Ans. Matric potential

The organic matter present in soil is known collectively as – (1) Hydrocarbons (2) Podsols (3) Humus (4) Colloids

Description : The organic matter present in soil is known collectively as – (1) Hydrocarbons (2) Podsols (3) Humus (4) Colloids

Last Answer : (3) Humus Explanation: The organic matter present in soil is known collectively as humus. Humus is fully decomposed and finely divided organic matter. Dune is a hill or ridge of sand accumulated and sorted by wind action.

Which colloids are solvent loving colloids?

Description : Which colloids are solvent loving colloids?

Last Answer : Lyophilic

Associated Colloids

Description : Associated Colloids

Last Answer : Associated Colloids :Those colloids which behave as strong electrolyte at low concentration but at high concentration behave like colloids due to formation of aggregated particle of colloidal dimensions. For eg. Micelles are associated colloids.

Macromolecular colloids

Description : Macromolecular colloids

Last Answer : Macromolecular colloids : A colloid in which the size of dispersed particles are in a colloidal range. Such dispersed phase in dispersion medium is called Macromolecular colloids. For Eg. Proteins, Starch and Cellulose form macromolecular colloids.

Multimolecular Colloids

Description : Multimolecular Colloids

Last Answer : Multimolecular Colloids: A colloid in which large no. of atoms or smaller molecules aggregate together to form species having size in colloidal range for eg. A sulphur sol consists of particles containing about a thousand of S8 molecule.

Lyophobic Colloids

Description : Lyophobic Colloids

Last Answer : Lyophobic Colloids :- Those colloids which are solvent hating. It is irreversible Sols.

Lyophilic Colloids

Description : Lyophilic Colloids

Last Answer : Lyophilic Colloids : Those colloids which are solvents loving or attracting they are reversible Sols.

Colloids or Colloidal Solution

Description : Colloids or Colloidal Solution

Last Answer : Colloids or Colloidal Solution : A heterogeneous solution in which dispersed phase mixed in dispersion medium.

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) Nitrification or oxidation of ammonia derived from breakdown of nitrogenous organic matter to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Description : Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

5-200 μm size particles are called (A) Colloids or aerosols (B) Powder (C) Dust (D) Smoke

Description : 5-200 μm size particles are called (A) Colloids or aerosols (B) Powder (C) Dust (D) Smoke

Last Answer : (A) Colloids or aerosols

Fat dispersed in water is exemplified by (A) Colloids (B) Gel (C) Butter (D) Emulsion

Description : Fat dispersed in water is exemplified by (A) Colloids (B) Gel (C) Butter (D) Emulsion

Last Answer : (C) Butter

Which of the following colloids is expensive but rapidly expands plasma volume? a) Albumin Albumin is a colloid that requires human donors, is limited in supply, and can cause congestive heart failure. b) Dextran Dextran is a colloid, synthetic plasma expander that interferes with platelet aggregation and is not recommended for hemorrhagic shock. c) Lactated Ringers Lactated ringers is a crystalloid, not a colloid. d) Hypertonic Saline Hypertonic saline is a crystalloid, not a colloid.

Description : Which of the following colloids is expensive but rapidly expands plasma volume? a) Albumin Albumin is a colloid that requires human donors, is limited in supply, and can cause congestive heart failure ... , not a colloid. d) Hypertonic Saline Hypertonic saline is a crystalloid, not a colloid.

Last Answer : a) Albumin Albumin is a colloid that requires human donors, is limited in supply, and can cause congestive heart failure.

Which colloids are solvent loving colloids?

Description : Which colloids are solvent loving colloids?

Last Answer : Lyophilic

Ionic substances dissolve in water to form: w) highly acid solutions x) electrolytic solutions y) colloids z) emulsions

Description : Ionic substances dissolve in water to form: w) highly acid solutions x) electrolytic solutions y) colloids z) emulsions

Last Answer : ANSWER: X -- ELECTROLYTIC SOLUTIONS

Gels and Foams are classified as: w) solutions x) emulsions y) colloids z) suspensions

Description : Gels and Foams are classified as: w) solutions x) emulsions y) colloids z) suspensions

Last Answer : ANSWER: C -- COLLOIDS

Name the effect that is caused by scattering of light in colloids or suspensions.

Description : Name the effect that is caused by scattering of light in colloids or suspensions.

Last Answer : ANSWER: TYNDALL EFFECT

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The organic matter present in soil is known collectively as (1) Hydrocarbons (2)Podsols (3) Humus (4)Colloids

Description : The organic matter present in soil is known collectively as (1) Hydrocarbons (2)Podsols (3) Humus (4)Colloids

Last Answer : Humus

Nitrogen differs from rest of the members on the account of various factors. Which of the following properties can be classified as anomalous properti

Description : Nitrogen differs from rest of the members on the account of various factors. Which of the following properties can be classified as anomalous properti

Last Answer : Nitrogen differs from rest of the members on the account of various factors. Which of the ... nitrogen comprises 78% by volume of the atmosphere

Nitrogen differs from rest of the members on the account of various factors. Which of the following properties can be classified as anomalous properti

Description : Nitrogen differs from rest of the members on the account of various factors. Which of the following properties can be classified as anomalous properti

Last Answer : Nitrogen differs from rest of the members on the account of various factors. Which of the ... nitrogen comprises 78% by volume of the atmosphere

What are the Various Block Coordination Properties

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Last Answer : c) Both of Above

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Description : Q.9. Study the ingredients of various food items. Do they have some common food ingredients? -Science

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