Van Arkel method of purification of metals involves converting the metal to

Van Arkel method of purification of metals involves converting the metal to
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Van Arkel method of purification of metals involves converting the metal to A. Volatile stable ... . Volatile unstable compound D. None of these
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Van Arkel method of purification of metals involves converting the metal to

Description : Van Arkel method of purification of metals involves converting the metal to

Last Answer : Van Arkel method of purification of metals involves converting the metal to A. Volatile ... stable compound D. non-volatile unstable compound

Among the metals Ti,V,W,Zr th and Au the number of metals purified van arkel method are…….

Description : Among the metals Ti,V,W,Zr th and Au the number of metals purified van arkel method are…….

Last Answer : Among the metals Ti,V,W,Zr th and Au the number of metals purified van arkel method are…….

Assertion : Zirconium can be purificed by Van Arkel method. Reason : `ZrI_(4)` is volatile and decomposed at `1800 K`.

Description : Assertion : Zirconium can be purificed by Van Arkel method. Reason : `ZrI_(4)` is volatile and decomposed at `1800 K`.

Last Answer : Assertion : Zirconium can be purificed by Van Arkel method. Reason : `ZrI_(4)` is volatile and decomposed at `1800 K`.

`Ti` can be purified by Van Arkel process. `TiI_(4)` is a volatile compound which decomposes at a high temperature.

Description : `Ti` can be purified by Van Arkel process. `TiI_(4)` is a volatile compound which decomposes at a high temperature.

Last Answer : `Ti` can be purified by Van Arkel process. `TiI_(4)` is a volatile compound which decomposes at a ... D. Statement-1 is false but Statement -2 is true

In which of the following method of purification metal is converted to its volatile compound which is decomposed to give pure metal?

Description : In which of the following method of purification metal is converted to its volatile compound which is decomposed to give pure metal?

Last Answer : In which of the following method of purification metal is converted to its volatile compound ... Heating with iodine C. Liquidation D. Distillation

One of the methods of purification of leach liquor is ion exchange, which involves (A) Exchange between two liquid phases (B) Exchange between a gaseous phase and a liquid phase (C) Exchange between a liquid phase and an organic resin phase (D) Exchange between a solid phase and a gas phase

Description : One of the methods of purification of leach liquor is ion exchange, which involves (A) Exchange between two liquid phases (B) Exchange between a gaseous phase and a liquid phase (C) Exchange between a liquid phase and an organic resin phase (D) Exchange between a solid phase and a gas phase

Last Answer : (C) Exchange between a liquid phase and an organic resin phase

Which of the following metals is not subjected to electrolytic refining/purification? (A) Copper (B) Zinc (C) Tin (D) Aluminium

Description : Which of the following metals is not subjected to electrolytic refining/purification? (A) Copper (B) Zinc (C) Tin (D) Aluminium

Last Answer : (C) Tin

Bonneville, Early Badger, Arkel are the improved varieties of (A) Frenchbean (B) Pea (C) Sunflower (D) Soybean

Description : Bonneville, Early Badger, Arkel are the improved varieties of (A) Frenchbean (B) Pea (C) Sunflower (D) Soybean

Last Answer : (B) Pea

There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s) is/are true concerning energy converting transport? a. The site of energy conversion and transport in the plasma membrane involves the phospholipid component b. The Na+-K++-ATPase derives energy from hydrolysis of extracellular ATP c. In some systems, energy inherent in the transmembrane ion gradient can be used to drive transport of a second species d. Examples of species transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose

Description : There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s ... transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose

Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose

It involves converting standard logic levels to a form more suitable to telephone transmission lines

Description : It involves converting standard logic levels to a form more suitable to telephone transmission lines

Last Answer : igital line encoding

Fluorescent dyes are added in detergents to (A) Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics (B) Attain distinctiveness from other brands (C) Act as tarnish inhibitor for metals like German silver (D) None of these

Description : Fluorescent dyes are added in detergents to (A) Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics (B) Attain distinctiveness ... brands (C) Act as tarnish inhibitor for metals like German silver (D) None of these

Last Answer : (A) Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics

If a metal has low oxygen affinity then the purification of metal may be carried out by :

Description : If a metal has low oxygen affinity then the purification of metal may be carried out by :

Last Answer : If a metal has low oxygen affinity then the purification of metal may be carried out by : A. liquation B. distillation C. zone refining D. cupellation

If the impurity in a metal has a greater affinity for oxygen and is more easily oxidised than the metal, then the purification of metal may be carried

Description : If the impurity in a metal has a greater affinity for oxygen and is more easily oxidised than the metal, then the purification of metal may be carried

Last Answer : If the impurity in a metal has a greater affinity for oxygen and is more easily oxidised than ... B. electrorefining C. Zone refining D. POILING

Ultra purification of a metal is done by (1) slugging (2) zone melting (3) smelting (4) leaching

Description : Ultra purification of a metal is done by (1) slugging (2) zone melting (3) smelting (4) leaching

Last Answer : (2) zone melting Explanation: When metals are required in a ultra pure state, the zone refining method is used. The principleemployed states that the impurities, which lower the melting point of ... remain preferentially dissolved in the liquid phase and purer metal will emerge in the solid phase.

Ultra purification of a Metal is done by–

Description : Ultra purification of a Metal is done by–

Last Answer : Zone Melting

Ultra purification of a metal is done by : (1) slugging (2) zone melting (3) smelting (4) leaching

Description : Ultra purification of a metal is done by : (1) slugging (2) zone melting (3) smelting (4) leaching

Last Answer : zone melting

Diamond is hard because (a) It has strong covalent bonds (b) Discrete molecules of carbon are held by strong Vander Waal’s forces (c) It involves Van der Waal's forces (d) Covalent bonds are directional unlike ionic bonds

Description : Diamond is hard because (a) It has strong covalent bonds (b) Discrete molecules of carbon are held by strong Vander Waal’s forces (c) It involves Van der Waal's forces (d) Covalent bonds are directional unlike ionic bonds

Last Answer : Ans:(a)

Which oil is used in the floatation method for the purification of ores? -General Knowledge

Description : Which oil is used in the floatation method for the purification of ores? -General Knowledge

Last Answer : The answer is 'Pine oil'

Purification of petroleum is carried out by which method? -General Knowledge

Description : Purification of petroleum is carried out by which method? -General Knowledge

Last Answer : The answer is 'Fractional distillation'

Purification of petroleum is carried out by which method? -General Knowledge

Description : Purification of petroleum is carried out by which method? -General Knowledge

Last Answer : answer:

Purification of petroleum is carried out by which method? -General Knowledge

Description : Purification of petroleum is carried out by which method? -General Knowledge

Last Answer : answer:

Which method of purification is represented by the following equations `Ti +2I_(2) overset(523K)rarr TiI_(4) overset(1700K)rarr Ti +2I_(2)`

Description : Which method of purification is represented by the following equations `Ti +2I_(2) overset(523K)rarr TiI_(4) overset(1700K)rarr Ti +2I_(2)`

Last Answer : Which method of purification is represented by the following equations `Ti +2I_(2) overset(523K)rarr TiI_( ... B. Poling C. Can arkel D. zone refining

(xiv) Following equation represents a method of purification of nickel by `underset ("Impure")(Ni) + 4CO overset (320 K)rarr Ni(CO)_(4) overset(420 K)

Description : (xiv) Following equation represents a method of purification of nickel by `underset ("Impure")(Ni) + 4CO overset (320 K)rarr Ni(CO)_(4) overset(420 K)

Last Answer : (xiv) Following equation represents a method of purification of nickel by `underset ("Impure")(Ni) + ... Arkel B. Zone refining C. Mond D. Cupellation

Dialysis is a method of purification of sols. But prolonged dialysis of the sol makes it unstable. Why ?

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.

Which oil is used in the floatation method for the purification of ores?

Description : Which oil is used in the floatation method for the purification of ores?

Last Answer : Hole

Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The ... . D. roasting followed by electrolytic reduction.

Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from ... 2)S+2Cu_(2)O rarr 6Cu+SO_(2)`

A metal of token authorized to type must be carried by all RMS officials except a) Van attendants b) Mail guardc) Supervising officer d) None of these

Description : A metal of token authorized to type must be carried by all RMS officials except a) Van attendants b) Mail guard c) Supervising officer d) None of these

Last Answer : c) Supervising officer

Air purification: Why does the air in nice hotels feel so good?

Description : Air purification: Why does the air in nice hotels feel so good?

Last Answer : To me, 67 degrees is chilly enough that it would have woken me up.

Will you help me choose my home water purification plan?

Description : Will you help me choose my home water purification plan?

Last Answer : answer:I like aquasana products because they restrict the flow much less than others I've tried, and we have lousy water pressure (~35psi). The least invasive would be their countertop system, which ... what I've read you are correct that de-mineralized water will pull vital minerals out of you.

Anybody here familiar with water purification calculations?

Description : Anybody here familiar with water purification calculations?

Last Answer : All I can tell you is that Spellman is a textbook, and the pages involved can be found online here. It includes sample calculations as well as the definition of terms such as residual.

Which material is suitable for water purification? -Do You Know?

Description : Which material is suitable for water purification? -Do You Know?

Last Answer : answer:

What is water purification ?

Description : What is water purification ?

Last Answer : Water purification is the process of purifying contaminated water in a specific process. Water can contain a variety of contaminants. There are several ways to purify water Below they are highlighted: 1. ... filter method. 3. Chemical methods: - Chlorination. 4. Ultraviolet rays. 5. Boiling water.

What is the name of water purification tablet ?

Last Answer : : The name of the water purification tablet is Halogen.

Sewage purification is performed by

Description : Sewage purification is performed by

Last Answer : Sewage purification is performed by A. Microbes B. Fertilizers C. Antibiotics D. Antiseptics

In the froth floatation process for the purification of minerals the particles float because

Description : In the froth floatation process for the purification of minerals the particles float because

Last Answer : In the froth floatation process for the purification of minerals the particles float because A. they ... by oil D. They bear an electrostatic charge.

Are water softeners and water purification systems the same?

Description : Are water softeners and water purification systems the same?

Last Answer : Yes, there is a difference between water softeners and water purification systems as water softeners merely filter the water whereas water purification systems actually filter and cleanse the water.

What does protein expression and purification mean?

Description : What does protein expression and purification mean?

Last Answer : Protein purification is a series of processes intended to isolate one or a few proteins from a complex mixture, usually cells, tissues or whole organisms. Protein purification is vital for ... the importance of building a convenient and easy to use protein high expression and purification system.

What are the benefits of protein expression and purification?

Description : What are the benefits of protein expression and purification?

Last Answer : Protein could be expressed in various systems and each system has its own advantages. To choose which system, we should take several factors into consideration such as the Cost, the type of ... protein yield. The most widely used systems are expressions in Bacterial, Yeast, Insect and Mammalian.

Is protein expression and purification a scientific process?

Description : Is protein expression and purification a scientific process?

Last Answer : Yes. Protein purification is a series of processes intended to isolate one or a few proteins from a complex mixture, usually cells, tissues or whole organisms. Protein purification is vital ... vital for the characterization of the function, structure and interactions of the protein of interest.

The sorting out of molecules according to size and shape may be adapted to protein purification in this technique: (A) Adsorption chromatography (B) Gel filtration chromatography (C) Paper chromatography (D) None of these

Description : The sorting out of molecules according to size and shape may be adapted to protein purification in this technique: (A) Adsorption chromatography (B) Gel filtration chromatography (C) Paper chromatography (D) None of these

Last Answer : Answer : B

The technique for purification of proteins that can be made specific for a given protein is (A) Gel filtration chromotography (B) Ion exchange chromatography (C) Electrophoresis (D) Affinity chromatography

Description : The technique for purification of proteins that can be made specific for a given protein is (A) Gel filtration chromotography (B) Ion exchange chromatography (C) Electrophoresis (D) Affinity chromatography

Last Answer : Answer : D

For water purification, we use _____. A. Chlorine B. Flourine C. Bromine D. Lodine

Description : For water purification, we use _____. A. Chlorine B. Flourine C. Bromine D. Lodine

Last Answer : ANSWER: A

For water purification, we use _____. A. Chlorine B. Flourine C. Bromine D. Lodine

Description : For water purification, we use _____. A. Chlorine B. Flourine C. Bromine D. Lodine

Last Answer : ANSWER: A

For water purification, we use _____. A. Chlorine B. Flourine C. Bromine D. Lodine

Description : For water purification, we use _____. A. Chlorine B. Flourine C. Bromine D. Lodine

Last Answer : ANSWER: A

Muddy water is treated with alum in purification process, it is termed as : (1) emulsification (2) absorption (3) adsorption (4) coagulation

Description : Muddy water is treated with alum in purification process, it is termed as : (1) emulsification (2) absorption (3) adsorption (4) coagulation

Last Answer : (4) coagulation Explanation: Natural and wastewater contain small particulates that are suspended in water forming a colloid. These particles carry the same charges, and repulsion prevents them from combining into larger particulates to settle.

During purification process of sewage the gas given off, is A. Carbon dioxide B. Hydrogen C. Ammonia D. All the above

Description : During purification process of sewage the gas given off, is A. Carbon dioxide B. Hydrogen C. Ammonia D. All the above

Last Answer : ANS: D

Disposal to sewage in large cities, is done in A. Irrigation B. Dilution C. Oxidation D. Purification

Description : Disposal to sewage in large cities, is done in A. Irrigation B. Dilution C. Oxidation D. Purification

Last Answer : ANS: B

The factor responsible for purification of sewage in river is A. Hydrology B. Dissolved oxygen in water C. Temperature D. All the above

Description : The factor responsible for purification of sewage in river is A. Hydrology B. Dissolved oxygen in water C. Temperature D. All the above

Last Answer : ANS: D

54 Pick up the correct statement from the following: A. The ratio of the quantity of the diluting water to that of the sewage, is known as dilution factor B. The automatic purification of polluted water, is known self purification phenomenon C. The photosynthesis is carried out in the presence of sun light D. All the above

Description : 54 Pick up the correct statement from the following: A. The ratio of the quantity of the diluting water to that of the sewage, is known as dilution factor B. The automatic purification of polluted ... phenomenon C. The photosynthesis is carried out in the presence of sun light D. All the above

Last Answer : ANS: D