In the gaseous diffusion process of uranium enrichment, the natural
uranium is converted into gaseous
(A) Uranium oxide
(B) Uranium hexafluoride
(C) Uranium carbide
(D) Uranium sulphate

1 Answer

Answer :

(B) Uranium hexafluoride

Related questions

Description : Reverse osmosis is normally used for the (A) Separation of isotopes of uranium from gaseous uranium hexafluoride (B) Separation of helium from natural gas (C) Desalination of brackish water to produce potable (drinking) water (D) Purification of oxygen

Last Answer : (C) Desalination of brackish water to produce potable (drinking) water

Description : Enrichment of uranium by gaseous diffusion relies on the fact that uranium-235 diffuses through holes in the barriers more readily than uranium-238 does because uranium-235 is: w) a different chemical ... x) a different wavelength. y) resistant to magnetism. z) slightly lighter than uranium-238.

Last Answer : ANSWER: Z -- SLIGHTLY LIGHTER THAN URANIUM-238.

Description : How is the Graham’s law of diffusion useful in the enrichment of Uranium? Explain.

Last Answer : Graham’s law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular mass. This principle is used to separate by passing gaseous uranium through several stages of semi-permeable membrane.

Description : Separation of __________ employs gaseous diffusion process. (A) N2 and O2 from air (B) Isotopes of uranium (C) Isotopes of helium (D) SO2 and air

Last Answer : (B) Isotopes of uranium

Description : Final product of uranium extraction plant at Jadugoda (Bihar) is (A) Uranium (B) Uranium oxide (C) Uranium carbide (D) Magnesium diuranate

Last Answer : (D) Magnesium diuranate

Description : Enrichment of uranium is done to increase the concentration of__________ in the natural uranium. (A) U-238 (B) U-233 (C) U-235 (D) Pu-239

Last Answer : (C) U-235

Description : Fuel used in a Fast Breeder Reactor is -------? A. Uranium Oxide B. Uranium Plutonium carbide C. Uranium Plutonium Oxide (Answer) D. Uranium thorium Oxide E. None of these

Last Answer : C. Uranium Plutonium Oxide (Answer)

Description : CFC a byproduct in uranium enrichment process?

Last Answer : I can't give you a direct quote about chlorine, fluorine and carbon, as I haven't taken this stuff in about 3 years. BUT, Nuclear plants aren't really 100% clean. They are better obviously than coal or gas ... any entry level college chem book .. I sold mine long ago or I'd look it up for ya).

Description : Enrichment of uranium is made by :

Last Answer : Enrichment of uranium is made by : A. distillation B. diffusion C. evaporation D. bleaching

Description : Write briefly (a)Allotropy (b) Nebula (c) Enrichment of Uranium (d) Aqua Regia (e) Greenhouse effect (f) Igneous rocks

Last Answer : (a)Allotropy existence of a chemical element in two or more different forms For example, the element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a ... igneous rocks have been described, most of them formed beneath the surface of the Earth's crust.

Description : Write briefly about any five of the following a. Nuclear radiation b. Theodolite c. Dialysis d. Enrichment of Uranium e. Richter Scale f. Aqua regia g. Iodized salt

Last Answer : a. Nuclear radiation Three are atomic nuclei of some elements that continuously emit some ultraviolet waves called radiation. When the process of radiation is stimulated through various nuclear processes ... , and at approximately the same level throughout the year, irrespective of economic level.

Description : The principle of enrichment of uranium is

Last Answer : Graham’s law of diffusion.

Description : What is the need for enrichment of uranium?

Last Answer : Naturally occurring uranium contains about 0.7% of 92 U 235 isotope which is fissionable. Self stained chain reaction are not possible in natural uranium which is not possible in natural uranium which is mostly made up of isotope 92 U 238

Description : What is meant by enrichment of uranium?

Last Answer : The process of separating92 U235and 92 U 238isotopes is called enrichment of uranium.

Description : What is the gaseous product formed from the reaction of calcium carbide and water?

Last Answer : ANSWER: ACETYLENE (or ETHYNE OR C2H2)

Description : Stainless steel is welded with difficulty because of (A) Its high melting temperature (B) Chances of cracking (C) Oxide film formation (D) Chromium carbide formation

Last Answer : Option C

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Description : hich of the following is the most suitable abrasive for grinding high tensile strength materials? (A) Silicon carbide (B) Corundum (C) Aluminium oxide (D) Boron carbide

Last Answer : Option C

Description : Calcium salts used as fertilizer is – (1) Calcium Carbide (2) Calcium Carbonate (3) Calcium Cyanide (4) Calcium Sulphate

Last Answer : (4) Calcium Sulphate Explanation: Sulphur (as sulphate) is a major plant nutrient, and is essential for crop growth. Calcium Sulphate (gypsum) is used to improve soil quality. Calcium sulphate ... It is mainly used for the reclamation of sodic soils through ion exchange (calcium replacing sodium).

Description : Calcium salts used as fertilizer is : (1) Calcium Carbide (2) Calcium Carbonate (3) Calcium Cyanide (4) Calcium Sulphate

Last Answer :  Calcium Sulphate

Description : Liquid hydrocarbons are converted to low molecular weight gaseous hydrocarbons by a process known as (a) hydrogenation (b) reforming (c) cracking (d) reduction

Last Answer : Ans:(c)

Description : Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor. (A) Thermal (B) Fast breeder (C) Heavy water moderated (D) Enriched uranium

Last Answer : (B) Fast breeder

Description : Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material. (A) Thorium-233 (B) Uranium-235 (C) Uranium-233 (D) Plutonium-239

Last Answer : (C) Uranium-233

Description : Gaseous diffusion co-efficient increases with increase in the (A) Pressure (B) Temperature (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (B) Temperature

Description : Which chemical is used to ripen mangoes artificially? (1) Sulphur Dioxide (2) Nitrous Oxide (3) Calcium Carbide (4) Phosphorous

Last Answer : (3) Calcium Carbide Explanation: The chemical widely used for artificially ripening fruits is calcium carbide (CaC2). It is used to ripen about 80 per cent of mangoes in India.

Description : Carborundum is another name of – (1) Silicon carbide (2) Silicon oxide (3) Calcium carbide (4) Calcium oxide

Last Answer : (1) Silicon carbide Explanation: Silicon carbide, also known as carborundum, is a compound of silicon and carbon with chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been massproduced since 1893 for use as an abrasive.

Description : Which gas is produced after the application of Calcium Carbide to the fruits, for rapid ripening? a. Methane b. Carbon-di-oxide c. Acetylene d. Ethylene

Last Answer : c. Acetylene

Description : Which gas is produced after the application of Calcium Carbide to the fruits, for rapid ripening? a. Methane b. Carbon-di-oxide c. Acetylene d. Ethylene

Last Answer : c. Acetylene

Description : Write down industrial importance of following ceramics. i) Silicon carbide ii) Aluminium oxide.

Last Answer : Industrial importance of: i) Silicon carbide: 1. It is used in car brakes and clutches. 2. Ceramic plates in bulletproof vests 3. Bearings 4. Semiconductors wafer processing equipment 5. ... . Cutting tools 3. Artificial bones and teeth 4. Engine and turbine parts 5. Thermometry sensors

Description : Carborundum is another name of (1) Silicon carbide (2) Silicon oxide (3) Calcium carbide (4) Calcium oxide

Last Answer :  Silicon carbide

Description : Xenon hexafluoride undergoes hydrolysis in strong alkaline medium:

Last Answer : Xenon hexafluoride undergoes hydrolysis in strong alkaline medium: A. (A) perxenate ion B. `O_2` C. (C) Xenon D. (D) All of the above

Description : What are the products formed in the reaction of xenon hexafluoride with silicon dioxide?

Last Answer : What are the products formed in the reaction of xenon hexafluoride with silicon dioxide? A. `XeSiO_(4) +HF` B. ` ... 2)+SiF_(4)` D. `XeO_(3)+SiF_(4)`

Description : Which of the following GHGs has the longest atmospheric life time? a) CO2 b) CFC c) Sulfur Hexafluoride (SF6) d) perfluorocarbon (PFC)

Last Answer : d) perfluorocarbon (PFC)

Description : The gaseous form of chlorine gets converted into liquid form when subjected to a pressure of  (A) 5 kg/cm2 (B) 6 kg/cm2 (C) 7 kg/cm2 (D) 10 kg/cm

Last Answer : (C) 7 kg/cm

Description : In tractor engine which of the following is a device in which liquid fuel is converted into gaseous fuel? 1. Piston 2. Carburetor 3. Both 1 and 2 4. none of these ans 1

Last Answer : ans 1

Description : 19.The natural ageing of a lake by nutrient enrichment is called. a) Biomagnification b) Eutrophication c) Algal bloom d) Desertification

Last Answer : b) Eutrophication

Description : (A) Enrichement of `U^(235)` from a mixture containing more abundant `U^(238)` is based on diffusion of `UF_(6)`. `UF_(6) is a gaseous compound under

Last Answer : (A) Enrichement of `U^(235)` from a mixture containing more abundant `U^(238)` is based on diffusion of ` ... . D. If both (A) and (R ) are incorrect.

Description : Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher (A) Melting point, hence can be subjected to higher temperature (B) Density; hence core volume for a given ... be smaller (C) Resistance to effects of irradiation (D) All (A), (B) and (C)

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

Description : An example of elution is (A) Separation of uranium oxide from its ore by H2SO4 in a Pachuca tank (B) Separation of sugar from sugar beet by hot water (C) Dissolution of tannin out of tree barks by water (D) Recovery of vegetable oils from seeds

Last Answer : (A) Separation of uranium oxide from its ore by H2SO4 in a Pachuca tank

Description : Solar energy is converted into chemical energy during – (1) Transpiration (2) Photosynthesis (3) Diffusion (4) Osmosis

Last Answer : (2) Photosynthesis Explanation: In photosynthesis, solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are ... captured from the sun into chemical energy that can be used to fuel the organism's activities.

Description : Solar energy is converted into chemical energy during (1) Transpiration (2) Photosynthesis (3) Diffusion (4) Osmosis

Last Answer : Photosynthesis

Description : __________ is the major constituent of the Portland cement. (A) Calcium carbonate (B) Calcium oxide (C) Tricalcium silicate (D) Calcium sulphate

Last Answer : (C) Tricalcium silicate

Description : The product (s) of roasting of a sulphide ore is (are) (A) Oxide only (B) Sulphate only (C) Oxide and sulphate (D) Dependent on temperature and partial pressure of oxygen & sulphur dioxide

Last Answer : (A) Oxide only

Description : One of the following burns in air giveng a gaseous oxide (at room temp.)

Last Answer : One of the following burns in air giveng a gaseous oxide (at room temp.) A. Hydrogen B. Sodium C. Sulphur D. Helium

Description : Discuss in brief gaseous sterilization using ethylene oxide. 

Last Answer : Gaseous sterilization using Ethylene oxide:  It is gas at room temperature, highly inflammable & forms explosive mixture with air. This disadvantage can be overcome by using mixture of 10% ethylene ... toxic & inflammable gas. Sophisticated instruments are required & skilled persons are needed.

Description : 'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues

Last Answer : B. Has low blood solubility and is used in high concentration

Description : The form of the fuel in U.S. commercial nuclear power plants is which of the following: w) uranium oxide ceramic pellets x) atomic vapor y) uranium metal tubes z) uranium solution in water

Last Answer : ANSWER: W -- URANIUM OXIDE CERAMIC PELLETS

Description : Eutrophication is the process of enrichment of surface water bodies with — a. Minerals b. Nutrients c. Salts d. Vegetation

Last Answer : b. Nutrients

Description : A sulphide ore is first converted into its oxide before reduction. This is done because :

Last Answer : A sulphide ore is first converted into its oxide before reduction. This is done because : A ... oxide is generally less stable than the metal sulphide

Description : The substance coated on plastic tape recorder tapes is (a) zinc oxide (b) magnesium oxide (c) iron sulphate (d) iron oxide

Last Answer : Ans:(d)