Description : 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
Last Answer : (B) Uranium hexafluoride
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 : Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand, India) is (A) 0.1 (B) 1 (C) 2 (D) 12
Last Answer : (A) 0.1
Description : Uranium ore is currently mined & concentrated (in India) at (A) Jadugoda (B) Ghatshila (C) Khetri (D) Alwaye
Last Answer : (A) Jadugoda
Description : Uranium ore is mined & concentrated in India at (A) Jadugoda (Jharkhand) (B) Kota (Rajasthan) (C) Tuticorin (Tamilnadu) (D) Talcher (Orissa)
Last Answer : (A) Jadugoda (Jharkhand)
Description : Uranium Corporation of India Limited (UCIL) engaged in the mining & concentration of uranium ore is located at (A) Alwaye (in Kerala) (B) Jadugoda (in Jharkhand) (C) Kalpakkam (in Tamilnadu) (D) Gopalpur coast (in Orissa)
Last Answer : (B) Jadugoda (in Jharkhand)
Description : Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about (A) 0.1 to 0.5 (B) 1 to 5 (C) 5 to 10 (D) 15 to 25
Last Answer : (A) 0.1 to 0.5
Description : Jadugoda mines are famous for – (1) iron ore (2) mica deposits (3) gold deposits (4) uranium deposits
Last Answer : (4) uranium deposits Explanation: The Jaduguda Mine is a uranium mine in Jaduguda village in the Purbi Singhbhum district of the Indian state of Jharkhand. It commenced operation in 1967 and ... 1951. As of March 2012 India only possesses two functional uranium mines, including the Jaduguda Mine.
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
Description : Lead-206 is the final product of the radioactive decay series named the: w) thorium series x) actinium series y) uranium series z) neptunium series
Last Answer : ANSWER: Y -- URANIUM SERIES
Description : Extraction of uranium from its ore is done using __________ methods. (A) Electrometallurgical (B) Pyrometallurgical (C) Chemical (D) Physical beneficiation
Last Answer : (C) Chemical
Description : Extraction of uranium from its ore is done by __________ method. (A) Chemical (B) Pyrometallurgical (C) Physical beneficiation (D) Electrometallurgical
Last Answer : (A) Chemical
Description : Match the following: Minerals States A. Uranium 1. Rajasthan B. Copper 2. Bihar C. Zinc 3. Karnataka D. Lignite 4. Tamil Nadu E. Gold 5. Odisha A B C D E (a) 1 2 2 4 5 (b) 2 1 1 4 3 (c) 4 5 2 1 3 (d) 5 1 3 1 2
Last Answer : Ans: (b)
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 : 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 : 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 : Name the element discovered upon its extraction from pitchblende? w) platinum x) uranium y) iridium z) plutonium
Last Answer : ANSWER: X -- URANIUM
Description : Gold Mines in India are located mainly in (a) Kolar (b) Raniganj (c) Jadugoda (d) Veeranam (e) None of these shop.ssbcrack.com
Last Answer : Ans: (a)
Description : Electrometallurgical methods of metal extraction is normally used for those metals (A) Whose oxide/ore is not reduced by carbon (B) Which fall in the category of alkali & alkaline earth metals (C) Which stands higher in the electrochemical series of the metal (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Which of the following is the only element which i "mined" from the sea? Is it: w) copper x) magnesium y) uranium z) zinc
Last Answer : ANSWER: X -- MAGNESIUM
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 : Which scientific method is used for the production/extraction of Magnesium?
Last Answer : Dow process
Description : Statement -1:Aluminothermy is used for extraction of chromium from chromium oxide. Statement-2: Aluminium is reducing agent.
Last Answer : Statement -1:Aluminothermy is used for extraction of chromium from chromium oxide. Statement-2: Aluminium is ... -1 is false but Statement -2 is true
Description : The common method for the extraction of metals from the oxide ore is :
Last Answer : The common method for the extraction of metals from the oxide ore is : A. Reduction with carbon B. ... . reduction with `H_(2)` D. electrolytic method
Description : (A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts with its oxide to the give the metal
Last Answer : (A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts ... . If (A) is incorrect but (R ) is correct
Description : As far as localised alveolar osteitis is concerned; which one of the following is true? A. The incidence in the mandible and maxilla is similar B. The prophylactic prescription of antibiotics ... and irrigation is mandatory E. Zn oxide eugenol and alvogyl dressing promote a rapid bone growth
Last Answer : C. Excessive fibrinolysis is the likely aetiology
Description : As far as localised alveolar osteitis (dry socket) is concerned; which one of the following is true? M07 A. The incidence in the mandible and maxilla is similar B. The prophylactic ... diagnosis and irrigation is mandatory E. Zinc oxide eugenol and alvogyl dressing promote a rapid bone growth
Description : The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction
Last Answer : The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction A. ` ... D. `2Cu_(2)O+FeSto4Cu+Fe+SO_(2)`
Description : A process of treatment of stalks for final fibre extraction is termed as
Last Answer : Ans.Retting 18. Cotton
Description : `underset("Calcium carbide")(CaC_(2))overset(H_(2)O)(to)(A)overset("Red hot Cu tube")(to)(B)`, Product (B) of the reaction is:
Last Answer : `underset("Calcium carbide")(CaC_(2))overset(H_(2)O)(to)(A)overset("Red hot Cu tube")(to)(B)`, Product (B) of the reaction is: A. B. C. D.
Description : What is the gaseous product formed from the reaction of calcium carbide and water?
Last Answer : ANSWER: ACETYLENE (or ETHYNE OR C2H2)
Description : You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry
Last Answer : Aim: To test the nature of oxides formed by metals and non-metals. Materials Required: Sulphur powder, Mg ribbon, water, blue litmus paper, red litmus paper. Procedure: 1.Take magnesium ribbon ... the metallic oxides are basic in nature whereas most of the non-metallic oxides are acidic in nature.
Description : What kind of compound is magnesium oxide ?
Last Answer : Magnesium oxide is an ionic compound.
Last Answer : Chemical signal of magnesium oxide MgO
Description : Magnesium oxide can be obtained by heating :-
Last Answer : Magnesium oxide can be obtained by heating :- A. `MgCO_(3)` B. `Mg(NO_(3))_(2)` C. `Mg(OH)_(2)` D. All
Description : What is Light Magnesium Oxide and it's Applications?
Last Answer : Light magnesium oxide is produced via lower temperature calcination of magnesium carbonate or magnesium hydroxide. The lower calcination temperature causes the calcined magnesia to have a lower density, so ... despite its fluffier nature, light magnesium oxide is ideal for use in water treatment ap
Description : What is the correct chemical formula for magnesium oxide?
Last Answer : Magnesium oxide, or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium. It has an empirical formula of MgO and consists of a lattice of Mg²âº ions and O²â» ions held together by ionic bonding
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)
Description : Sodium chloride, potassium chloride, magnesium oxide are examples of molecules with (a) Covalent bonding (b) Ionic bonding (c) Metallic bonding (d) Hydrogen bonding
Last Answer : Ans:(b)
Description : (3) preventing rapid setting of cement Explanation: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of ... mixed with water by way of a complex series of chemical reactions still only partly understood.
Last Answer : Milk is a colloidal system in which: (1) Water is dispersed in fat (2) Fat is dispersed in water (3) Fat and water are dispersed in each other (4) Fat is dissolved
Description : Philosopher’s wool is chemically - (1) Aluminium oxide (2) Magnesium oxide (3) Zinc oxide (4) Calcium oxide
Last Answer : (3) Zinc oxide Explanation: Philosopher's Wool is chemically zinc oxide.
Description : Which compound is formed when a Magnesium ribbon is burnt in air? (1) Magnesium Nitrate (2) Magnesium Carbonate (3) Magnesium Oxide (4) Magnesium Nitride
Last Answer : (3) Magnesium Oxide Explanation: When Magnesium burns air it reacts with oxygen present in air to form magnesium oxide.
Description : Give reason: During burning of magnesium not only magnesium oxide is formed but also magnesium nitride is formed.
Last Answer : Due to high temperature the triple bond between nitrogen atoms is broken and a small quantity of magnesium nitride is formed.