Description : The main ore of thorium is (A) Pitchblende (B) Monazite sand (C) Limonite (D) Galena
Last Answer : (B) Monazite sand
Description : Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium
Last Answer : (1) Haematite : Copper Explanation: Haematite is the mineral form of iron oxide (Fe2O3), one of several iron oxides. It is mined as the main ore of iron. Hematite is harder than pure iron, but much more brittle.
Last Answer : Haematite : Copper
Description : Main source of __________ is monazite sand. (A) Uranium (B) Polonium (C) Hafnium (D) Thorium
Last Answer : (D) Thorium
Description : Which of the following is not an ore of uranium? (A) Pitchblende (B) Kyanite (C) Carnotite (D) Rescolite
Last Answer : (B) Kyanite
Description : Uranium is recovered from its ore (pitchblende) by (A) Froth floatation technique (B) Leaching with sulphuric acid (C) Smelting in a furnace (D) Dissolving in water
Last Answer : (B) Leaching with sulphuric acid
Description : Uranium percentage in monazite sand is about (A) 0.01 (B) 0.25 (C) 1.2 (D) 7
Last Answer : (B) 0.25
Description : Which one of the following minerals is found in Monazite sand? (1) Potassium (2) Uranium (3) Thorium (4) Sodium
Last Answer : (3) Thorium Explanation: Monazite is a reddish-brown phosphate mineral containing rare earth metals. It occurs usually in small isolated crystals. There are actually at least four different kinds of monazite, depending on relative ... 5.0 to 5.5 and is relatively dense, about 4.6 to 5.7 g/ cm3.
Description : Which one of the following minerals is found in Monazite sand ? (1) Potassium (2) Uranium (3) Thorium (4) Sodium
Last Answer : Thorium
Description : Chalcopyrite is the main ore of (A) Copper (B) Lead (C) Tin (D) Iron
Last Answer : (A) Copper
Description : Which of the following ores contains maximum percentage of uranium? (A) Carnotite (B) Thorium (C) Rescolite (D) Pitchblende
Last Answer : (D) Pitchblende
Description : __________ is an ore of lead. (A) Quartz (B) Galena (C) Siderite (D) Chalcopyrite
Last Answer : (B) Galena
Description : Pig iron is produced by blast furnaces in India using mostly the iron ore named (A) Hematite (B) Magnetite (C) Siderite (D) Chalcopyrite
Last Answer : (A) Hematite
Description : Which of the following is an ore of iron? (A) Galena (B) Chalcopyrite (C) Hematite (D) Bauxite
Last Answer : (C) Hematite
Description : __________ is used as a flux in the smelting of copper ore like chalcopyrite. (A) Coke breeze (B) Lime powder (C) Silica/quartz (D) Dolomite
Last Answer : (C) Silica/quartz
Description : Cassiterite is an ore of (A) Tin (B) Lead (C) Molybdenum (D) Chromium
Last Answer : (A) Tin
Description : Which of the following is not an ore of copper? (A) Cryolite (B) Azurite (C) Chalcopyrite (D) Malachite
Last Answer : Option A
Description : Name the element discovered upon its extraction from pitchblende? w) platinum x) uranium y) iridium z) plutonium
Last Answer : ANSWER: X -- URANIUM
Description : Cassiterite ore `(SnO_(2))` is purified by
Last Answer : Cassiterite ore `(SnO_(2))` is purified by A. Magnetic separator B. roasting C. leaching D. Calcination
Description : Which of the following diagrams is correctly related to different steps involved in the extraction of Sn form cassiterite Ore?
Last Answer : Which of the following diagrams is correctly related to different steps involved in the extraction ... displacement method `rarr` Vapour phase refing
Description : The magnetic impurity present in cassiterite ore is
Last Answer : The magnetic impurity present in cassiterite ore is A. Silica B. Wolframite C. `SnO_(2)` D. Clay
Description : The monazite sands on the Kerala coasts, used for generating nuclear energy contain – (1) platinum (2) copper (3) uranium (4) bauxite
Last Answer : (3) uranium Explanation: Monazite sands contain uranium.
Description : Indian monazite sand contains __________ percent thorium. (A) 10 (B) 25 (C) 60 (D) 90
Last Answer : (A) 10
Description : The most important ore of aluminium is (a) Bauxite (b) Magnetite (c) Haematite (d) Monazite
Last Answer : Ans:(a)
Description : 'Monazite' is an ore of - (1) Sodium (2) Titaniurm (3) Thorium (4) Zirconium
Last Answer : (3) Thorium Explanation: Monazite is an important ore for thorium, lanthanum, and cerium. It is often found in placer deposits. India, Madagascar, and South Africa have large deposits of monazite sands.
Description : Which mineral is found in monazite sand? -General Knowledge
Last Answer : answer:
Description : The most extensive; commercially use- ful source of thorium as monazite sand occurs in India at?
Last Answer : Travancore coast
Description : The main charge in blast furnace is usually (A) Iron ore & coke (B) Iron ore, coke & air (C) Limestone, coke & iron ore (D) Limestone, sand & iron ore
Last Answer : Limestone, coke & iron ore
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 : 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 : Fast breeder test reactor at Kalpakkam (INDIA) is designed for using (A) Thorium as a fertile material (B) U-238 as a fertile material (C) Helium as a coolant (D) Uranium ore directly as a fuel
Last Answer : (A) Thorium as a fertile material
Description : Uranium ore is currently mined & concentrated (in India) at (A) Jadugoda (B) Ghatshila (C) Khetri (D) Alwaye
Last Answer : (A) Jadugoda
Description : Nuclear fuel complex, Hyderabad is engaged in the job of (A) Manufacture of nuclear fuel elements/assemblies (B) Processing of uranium ore (C) Treatment of spent fuel (D) None of these
Last Answer : (A) Manufacture of nuclear fuel elements/assemblies
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 : 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 : Removal of __________ exemplifies an adsorption unit operation. (A) Uranium from its ore (B) Water from petrol (C) Ammonia from coke oven gas (D) Mustard oil from mustard seed
Last Answer : (B) Water from petro
Description : Leaching of uranium ore and gold ore is done in (A) Centrifugal extractor (B) Pachuca tanks
Last Answer : (B) Pachuca tanks
Description : 'Pneumoconiosis' is a disease caused by the inhalation of __________ dust. (A) Coal (B) Uranium ore (C) Iron ore (D) Lime
Last Answer : (A) Coal
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 : Which of the following is not a non-metalliferous mineral? (A) Calcite (B) Fluorspar (C) Quartz (D) Cassiterite
Last Answer : (C) Quartz (D) Cassiterite
Description : Phosphoric acid is prepared from (A) Cryolite (B) Chalcopyrite (C) Rock phosphate (D) None of these
Last Answer : (C) Rock phosphate
Description : Identify the correct statement. (A) Sphlerite is zinc oxide (B) The first law of the thermodynamics is stated as δE = δQ - δW (C) Lead can be produced in a blast furnace (D) T. ferrooxidans is a fungus that can be used for leaching chalcopyrite
Description : The Vindhyan system of rocks is important for the production of [CDS 2011] (a) precious stones and building materials (b) iron ore and manganese (c) bauxite and mica (d) copper and uranium
Last Answer : Ans: (a)
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 : Tummalapalli in Andhra Pradesh has recently come on the world map for its largest (1) Uranium deposits (2) Tungsten deposits (3) Coal deposits (4) Bauxite ore deposits
Last Answer : (1) Uranium deposits Explanation: Tummalapalle Mine is a uranium mine in Tumalapalli village located in Kadapa of the Indian state of Andhra Pradesh. It has one of the largest reserves of uranium in the world.
Description : India and __________ signed a long-term contract supply of uranium ore concentrates to widen its source base for the nuclear fuel: (a) Canada (b) USA (c) Uzbekistan (d) None of These
Last Answer : Uzbekistan
Description : What is mainly extracted from pitchblende?
Last Answer : Uranium