Rcmoval of carbon particles from air involves the principle of – (1) Precipitation (2) FiIteration (3) Electrophoresis (4) Sedimentation

Rcmoval of carbon particles from air involves the principle of – (1) Precipitation (2) FiIteration (3) Electrophoresis (4) Sedimentation
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(3) Electrophoresis Explanation: Carbon particles in air are colloidal in nature and carry negative charge. The removal of carbon parities from air involves the principle of electrophoresis. Carbon particles get precipitated by losing their charge and, thus, the air which finally comes out is free from them.
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Removal of carbon particles from air involves the principle of (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation

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Last Answer : Electrophoresis

Removal of carbon particles from air involves the principle of - (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation

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Last Answer : Answer : D

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Last Answer : (D) All the above

Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copp

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The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.

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Last Answer : c. Neutralization.

The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in (A) The principle of test (B) The method of taking observations (C) The method of preparation of soil suspension (D) All of the above

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Pick out the true statement pertaining to water treatment. (A) Slow sand filters can remove colour completely (B) Activated carbon can be used for taste & odour control without subsequent filtration (C) Application of activated carbon reduces the temporary hardness of water (D) Normally, the turbidity is removed by adding a coagulant prior to sedimentation

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Last Answer : d) 1-5-2-3-4 and 6

(2) Exclusion Principle of Pauli Explanation: The Pauli exclusion principle is the quantum mechanical principle that no two identical fermions (particles with half-integer spin) may occupy the same quantum state simultaneously. A more rigorous statement is that the total wave function for two identical fermions is anti-symmetric with respect to exchange of the particles.

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Iron filings can be separated from a heterogenous mixture using the technique of (1) Sublimation (2) Magnetization (3) Sedimentation (4) Evaporation

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The process of removing calcium and magnesium from hard water is known as – (1) Sedimentation (2) Filtration (3) Flocculation (4) Water softening

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Description : Iron filings can be separated from a heterogenous mixture using the technique of : (1) Sublimation (2) Magnetization (3) Sedimentation (4) Evaporation

Last Answer : Magnetization

The function of sedimentation tank in sewage treatment is to: (1) Disinfect the sewage (2) Remove water content (3) Aerate the sewage (4) Remove suspended solids

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Iodine can be separated from a mixture of Iodine and Potassium Chloride by (1) sedimentation (2) filtration (3) sublimation (4) distillation

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Last Answer :  Water softening

Which of the following represents the accepted method of cleaning dust and foreign particles from electrical equipment while limiting damage to electric components? A. Carefully wiping off the components with a soft cotton rag. B. Blowing a high velocity stream of compressed air rapidly across the components. C. Using a vacuum cleaner to remove debris from the components. D. Using carbon tetrachloride as a cleaning solvent to clean the components.

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What are the major constituents of typical fly ash particles generated from the combustion of coal? w) acidic and basic oxides x) trace elements y) unburned carbon z) sulfates and phosphates

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Last Answer : ANSWER: W -- ACIDIC AND BASIC OXIDES 

How is precipitation related to high- pressure and low- pressure air?

Description : How is precipitation related to high- pressure and low- pressure air?

Last Answer : What is the answer ?

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Description : Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from ... Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji

Last Answer : Ans: (b)

Precipitation caused due to upward movement of warmer air as compared to surrounding air, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Description : Precipitation caused due to upward movement of warmer air as compared to surrounding air, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Last Answer : Answer: Option B

Pick up the correct statement from the following: (A) Central portion of a cyclone acts as a chimney through which air gets lifted (B) Cyclonic precipitation caused by a warm front is generally continuous (C) Greatest amount of orographic precipitation falls in the windward side of the barrier (D) All the above

Description : Pick up the correct statement from the following: (A) Central portion of a cyclone acts as a chimney through which air gets lifted (B) Cyclonic precipitation caused by a warm front is ... Greatest amount of orographic precipitation falls in the windward side of the barrier (D) All the above

Last Answer : Option D

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Description : Precipitation caused by lifting of an air mass due to the pressure difference, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Last Answer : Answer: Option A

Precipitation caused due to striking of air masses with a topographical feature, is called (A) Orographic precipitation (B) Convective precipitation (C) Cyclonic precipitation (D) None of these

Description : Precipitation caused due to striking of air masses with a topographical feature, is called (A) Orographic precipitation (B) Convective precipitation (C) Cyclonic precipitation (D) None of these

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Pick up correct statement from the following: (A) The air from outer portion of cyclones gets lifted for causing precipitation (B) The air from central portion of cyclone's gets lifted for causing precipitation (C) The air from entire surface of the cyclones gets lifted for causing precipitation (D) None of those

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Last Answer : Answer: Option B

Find false statement about effect of sulphur in fuel? (A) It has heating value (B) It helps in electrostatic precipitation of ash in flue gases (C) It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low (D) It erodes furnace walls

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The statement the resultant of the external forces applied to a body (rigid or non-rigid) composed of a system of particles is equivalent to the vector summation of the effective forces acting on all particles-is known as a.Corollary to Newton's laws of motion b.Principle of dynamics c.D' Alembert's principle d.Nowton's law e.Mohr's principle

Description : The statement the resultant of the external forces applied to a body (rigid or non-rigid) composed of a system of particles is equivalent to the vector summation of the effective forces acting on all ... motion b.Principle of dynamics c.D' Alembert's principle d.Nowton's law e.Mohr's principle

Last Answer : c. D' Alembert's principle

Operating principle of cyclone separator is based on the action of __________ dust particles. (A) Diffusion of (B) Centrifugal force on (C) Gravitational force on (D) Electrostatic force on

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The principle cause of failure of amalgam restoration is: A. Improperly prepared amalgam B. Improper cavity preparation C. Perio involvement D. Particles of amalgam

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Last Answer : B. Improper cavity preparation

What is precipitation reaction ? Explain with reactions.

Description : What is precipitation reaction ? Explain with reactions.

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Stalactites and Stalagmites form due to the precipitation of : (1) CaCO3 (2) CaCl2 (3) MgCl2 (4) MgCO3

Description : Stalactites and Stalagmites form due to the precipitation of : (1) CaCO3 (2) CaCl2 (3) MgCl2 (4) MgCO3

Last Answer : (1) CaCO3 Explanation: Stalactites and stalagmites are formed by water dripping or flowing from fractures on the ceiling of a cave. The dominant mineral in them is calcite (calcium carbonate) ... minerals that may be deposited include other carbonates, opal, chalcedony, limonite, and some sulfides.

Under what conditions precipitation takes place in ionic reactions?

Description : Under what conditions precipitation takes place in ionic reactions?

Last Answer : Ans. When ionic product is greater than solubility product.