Name the element discovered upon its extraction from pitchblende? w) platinum x) uranium y) iridium z) plutonium

Name the element discovered upon its extraction from pitchblende? w) platinum x) uranium y) iridium z) plutonium
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ANSWER: X -- URANIUM
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This natural fiber obtained from the stems of a plant of the nettle family has found popularity in modern fibers with a high wet strength, absorbent but dries quickly, it can be spun or woven, has a high rot and mildew resistance and elasticity 50 percent greater than that of CHEM-92; Multiple Choice: What transuranic element is often used in satellites as a source of heat or power? w) Plutonium-238 x) Strontium-90 y) Cesium-137 z) Uranium-235

Description : This natural fiber obtained from the stems of a plant of the nettle family has found popularity in modern fibers with a high wet strength, absorbent but dries quickly, it can be spun or woven, has a high rot ... a source of heat or power? w) Plutonium-238 x) Strontium-90 y) Cesium-137 z) Uranium-235

Last Answer : ANSWER: W -- PLUTONIUM-238

In a breeder reactor, new fuel is formed as non-fuel uranium-238 absorbs a neutron and ultimately becomes which of the following fissionable atoms: w) uranium-235 x) plutonium-239 y) uranium-239 z) neptunium-239

Description : In a breeder reactor, new fuel is formed as non-fuel uranium-238 absorbs a neutron and ultimately becomes which of the following fissionable atoms: w) uranium-235 x) plutonium-239 y) uranium-239 z) neptunium-239

Last Answer : ANSWER: X -- PLUTONIUM-239

Which one of the following elements is not found in nature? w) Technetium x) Iridium y) Osmium z) Molybdenum

Description : Which one of the following elements is not found in nature? w) Technetium x) Iridium y) Osmium z) Molybdenum

Last Answer : ANSWER: W -- TECHNETIUM 

All alloys contain this element if they are amalga The element is: w) iron x) mercury y) gold z) platinum

Description : All alloys contain this element if they are amalga The element is: w) iron x) mercury y) gold z) platinum

Last Answer : ANSWER: X -- MERCURY

The radioactive element most commonly detected in humans is: w) potassium-40 x) cobalt-60 y) iodine-131 z) plutonium-238

Description : The radioactive element most commonly detected in humans is: w) potassium-40 x) cobalt-60 y) iodine-131 z) plutonium-238

Last Answer : ANSWER: W -- POTASSIUM-40

An element that does not occur in nature but can be produced artificially is – (1) thorium (2) radium (3) plutonium (4) uranium

Description : An element that does not occur in nature but can be produced artificially is – (1) thorium (2) radium (3) plutonium (4) uranium

Last Answer : (3) plutonium

The element which is commonly used in nuclear for producing electricity by nuclear fission is – (1) Radium (2) Plutonium (3) Uranium (4) Deuterium

Description : The element which is commonly used in nuclear for producing electricity by nuclear fission is – (1) Radium (2) Plutonium (3) Uranium (4) Deuterium

Last Answer : (3) Uranium Explanation: Uranium is used to produce a chemical and nuclear reaction which makes a lot of heat.

The radioactive element used in heart pacemakers is – (1) Uranium (2) Deuterium (3) Plutonium (4) Radium

Description : The radioactive element used in heart pacemakers is – (1) Uranium (2) Deuterium (3) Plutonium (4) Radium

Last Answer : (1) Uranium Explanation: The actinides (or actinoids) are the chemical elements with atomic numbers between 90 and 109 inclusively. They occur between Groups 3 and 4 in Period 7 of the periodic table. ... scale, it is also used as a power source in smaller devices such as the heart pacemaker.

An element that does not occur in nature but can be produced artificially is (1) thorium (2) radium (3) plutonium (4) uranium

Description : An element that does not occur in nature but can be produced artificially is (1) thorium (2) radium (3) plutonium (4) uranium

Last Answer : plutonium

The element which is commonly used in nuclear for producing electricity by nuclear fission is (1) Radium (2) Plutonium (3) Uranium (4) Deuterium

Description : The element which is commonly used in nuclear for producing electricity by nuclear fission is (1) Radium (2) Plutonium (3) Uranium (4) Deuterium

Last Answer : (3) Uranium It is the most common element used to get nuclear energy Hope this will you

The radio-active element used in heart pacemakers is (1) Uranium (2) Deuterium (3) Plutonium (4) Radium

Description : The radio-active element used in heart pacemakers is (1) Uranium (2) Deuterium (3) Plutonium (4) Radium

Last Answer : Uranium

Name two elements that find wide application in transistor industry – (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Description : Name two elements that find wide application in transistor industry – (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Last Answer : (1) Silicon and Germanium Explanation: A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. Semiconductor material (date first used): the metalloids ... -germanium (1989), the allotrope of carbon graphene (research ongoing since 2004), etc.

Name two elements that find wide application in transistor industry (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Description : Name two elements that find wide application in transistor industry (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Last Answer : Silicon and Germanium

One of the first satellite system catering personal based communications services scheduled for operation. A. Iridium system B. Plutonium system C. Indium system D. Gallium system

Description : One of the first satellite system catering personal based communications services scheduled for operation. A. Iridium system B. Plutonium system C. Indium system D. Gallium system

Last Answer : A. Iridium system

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

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.

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

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 : Haematite : Copper

The chemical symbol for Plutonium is: w) Pl (read: P - L) x) Pu y) Pt z) Pm

Description : The chemical symbol for Plutonium is: w) Pl (read: P - L) x) Pu y) Pt z) Pm

Last Answer : ANSWER: X -- Pu

An element that does not occur in nature but can be produced artificially is-----? A. Plutonium (Answer) B. Uranium C. Radium D. Thorium

Description : An element that does not occur in nature but can be produced artificially is-----? A. Plutonium (Answer) B. Uranium C. Radium D. Thorium

Last Answer : A. Plutonium (Answer)

Which of the following is the only element which i "mined" from the sea? Is it: w) copper x) magnesium y) uranium z) zinc

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 

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

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

The main ore of uranium is (A) Pitchblende (B) Monazite sand (C) Cassiterite (D) Chalcopyrite

Description : The main ore of uranium is (A) Pitchblende (B) Monazite sand (C) Cassiterite (D) Chalcopyrite

Last Answer : (A) Pitchblende

Which of the following is not an ore of uranium? (A) Pitchblende (B) Kyanite (C) Carnotite (D) Rescolite

Description : Which of the following is not an ore of uranium? (A) Pitchblende (B) Kyanite (C) Carnotite (D) Rescolite

Last Answer : (B) Kyanite

Which of the following ores contains maximum percentage of uranium? (A) Carnotite (B) Thorium (C) Rescolite (D) Pitchblende

Description : Which of the following ores contains maximum percentage of uranium? (A) Carnotite (B) Thorium (C) Rescolite (D) Pitchblende

Last Answer : (D) Pitchblende

Which of the following elements does not occur in nature as a native ore? w) silver x) gold y) platinum z) aluminum

Description : Which of the following elements does not occur in nature as a native ore? w) silver x) gold y) platinum z) aluminum

Last Answer : ANSWER: Z -- ALUMINUM

Reactors in commercial nuclear power plants in the U.S. are often referred to as thermal reactors. A thermal reactor uses: w) fissionable plutonium-239 as fuel. x) a relatively low heat output. y) neutrons moderated to relatively low energies. z) liquid sodium as a coolant.

Description : Reactors in commercial nuclear power plants in the U.S. are often referred to as thermal reactors. A thermal reactor uses: w) fissionable plutonium-239 as fuel. x) a relatively low heat output. y) neutrons moderated to relatively low energies. z) liquid sodium as a coolant.

Last Answer : ANSWER: Y -- NEUTRONS MODERATED TO RELATIVELY LOW ENERGIES.

For which of the following reasons is plutonium-238 used for generating electricity on spacecraft? w) It is an alpha emitter with long half-life. x) It is a beta emitter with high specific power. y) It occurs abundantly in nature. z) It has low specific power.

Description : For which of the following reasons is plutonium-238 used for generating electricity on spacecraft? w) It is an alpha emitter with long half-life. x) It is a beta emitter with high specific power. y) It occurs abundantly in nature. z) It has low specific power.

Last Answer : ANSWER: W -- IT IS AN ALPHA EMITTER WITH LONG HALF-LIFE. 

The long range potential of nuclear energy in India depends on its reserves of – (1) thorium (2) uranium (3) plutonium (4) radium

Description : The long range potential of nuclear energy in India depends on its reserves of – (1) thorium (2) uranium (3) plutonium (4) radium

Last Answer : (2) uranium Explanation: India's domestic uranium reserves are small and the country is dependent on uranium imports to fuel its nuclear power industry. Since early 1990s, Russia has been a major supplier of nuclear fuel-to India.

The long range potential of nuclear energy in India depends on its reserves of (1) thorium (2) uranium (3) plutonium (4) radium

Description : The long range potential of nuclear energy in India depends on its reserves of (1) thorium (2) uranium (3) plutonium (4) radium

Last Answer : uranium

Which of the following elements is not radioactive? (1) Radium (2) Plutonium (3) Zirconium (4) Uranium

Description : Which of the following elements is not radioactive? (1) Radium (2) Plutonium (3) Zirconium (4) Uranium

Last Answer : (3) Zirconium Explanation: Zireonium is a lustrous, greywhite, strong transition metal that resembles titanium. Zirconium is mainly used as a refractory and pacifier, although it is used in small amounts as an alloying agent for its strong resistance to corrosion.

Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission? (1) Boron (2) Heavy water (3) Uranium (4) Plutonium

Description : Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission? (1) Boron (2) Heavy water (3) Uranium (4) Plutonium

Last Answer : (1) Boron Explanation: Boron shielding is used as a control for nuclear reactors, taking advantage of its high cross-section for neutron capture. Elemental boron is rare and ... aluminium. Crystalline boron is chemicallyinert and resistant to attack by boiling hydrofluoric or hydrochloric acid.

wo elements which are used to absorb neutrons to control the chain reaction during nuclear fission are - (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron

Description : wo elements which are used to absorb neutrons to control the chain reaction during nuclear fission are - (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron

Last Answer : (1) Boron and Cadmium Explanation: Since the continued chain reaction of a nuclear fission reactor depends upon at least one neutron from each fission being absorbed by another fissionable nucleus, the ... and then the control rods are slowly lifted until a chain reaction can just be sustained.

Which of the following elements is nonradioactive? (1) Uranium (2) Thorium (3) Plutonium (4) Zirconium

Description : Which of the following elements is nonradioactive? (1) Uranium (2) Thorium (3) Plutonium (4) Zirconium

Last Answer : (4) Zirconium Explanation: Zirconium is non-radioactive. It is a chemical element with the symbol Zr, atomic number 40 and atomic mass of 91.224. The name of zirconium is taken from the ... important source of zirconium. It is a lustrous, grey-white, strong transition metal that resembles titanium.

Which of the following elements is not radio-active ? (1) Radium (2) Plutonium (3) Zirconium (4) Uranium

Description : Which of the following elements is not radio-active ? (1) Radium (2) Plutonium (3) Zirconium (4) Uranium

Last Answer : Zirconium

Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission ? (1) Boron (2) Heavy water (3) Uranium (4) Plutonium

Description : Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission ? (1) Boron (2) Heavy water (3) Uranium (4) Plutonium

Last Answer : Boron

Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron

Description : Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron

Last Answer :  Boron and Cadmium

Nuclear energy is a mineralbased energy source. It is derived from (1) uranium (2) thorium (3) plutonium (4) All of the above

Description : Nuclear energy is a mineralbased energy source. It is derived from (1) uranium (2) thorium (3) plutonium (4) All of the above

Last Answer : uranium

Which of the following elements is non-radioactive ? (1) Uranium (2) Thorium (3) Plutonium (4) Zirconium

Description : Which of the following elements is non-radioactive ? (1) Uranium (2) Thorium (3) Plutonium (4) Zirconium

Last Answer : Zirconium

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

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 

What do uranium , plutonium , hydrogen produce ?

Description : What do uranium , plutonium , hydrogen produce ?

Last Answer : Radioactive elements like uranium , plutonium etc. When left unmanaged, they can be left astray and lose the right path.

What is Uranium , Neptunium Plutonium ?

Last Answer : Uranium , Neptuneum, Plutonium are radioactive substances.

What is the difference between plutonium and uranium?

Description : What is the difference between plutonium and uranium?

Last Answer : For more informations about uranium: see http://en.wikipedia.org/wiki/UraniumFor more informations about plutonium: see http://en.wikipedia.org/wiki/PlutoniumFor a short answer to an identical question, see : What_are_the_differences_between_plutonium_and_uranium

Fuel for a fast breeder reactor is (A) Plutonium (B) Uranium (C) Radium (D) Neptunium

Description : Fuel for a fast breeder reactor is (A) Plutonium (B) Uranium (C) Radium (D) Neptunium

Last Answer : (A) Plutonium

Which of the following nuclear materials is fissile? (A) Uranium-238 (B) Thorium-232 (C) Plutonium-239 (D) None of these

Description : Which of the following nuclear materials is fissile? (A) Uranium-238 (B) Thorium-232 (C) Plutonium-239 (D) None of these

Last Answer : (C) Plutonium-239

Specific gravity of uranium and plutonium is about (A) 8 (B) 13

Description : Specific gravity of uranium and plutonium is about (A) 8 (B) 13

Last Answer : (A) 8

Fast breeder reactors are most usable in India, because of our largest __________ deposits. (A) Thorium (B) Plutonium (C) Uranium (D) None of these

Description : Fast breeder reactors are most usable in India, because of our largest __________ deposits. (A) Thorium (B) Plutonium (C) Uranium (D) None of these

Last Answer : (A) Thorium

Nuclear fuel usually used in a Boiling Water Reactor (BWR) is (A) Plutonium (B) Enriched uranium (C) Natural uranium (D) Thorium

Description : Nuclear fuel usually used in a Boiling Water Reactor (BWR) is (A) Plutonium (B) Enriched uranium (C) Natural uranium (D) Thorium

Last Answer : (B) Enriched uranium

Which of the following is artificially produced as it does not occur in nature? (A) Uranium-235 (B) Uranium-233 (C) Plutonium-239 (D) Both (B) and (C)

Description : Which of the following is artificially produced as it does not occur in nature? (A) Uranium-235 (B) Uranium-233 (C) Plutonium-239 (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

The most commonly used nuclear fuel in boiling water reactor is (A) Enriched uranium (B) Natural uranium (C) Plutonium

Description : The most commonly used nuclear fuel in boiling water reactor is (A) Enriched uranium (B) Natural uranium (C) Plutonium

Last Answer : (A) Enriched uranium

Which of the following is a non-fissile material? (A) Plutonium-239 (B) Uranium-235 (C) Uranium-233 (D) Thorium-232

Description : Which of the following is a non-fissile material? (A) Plutonium-239 (B) Uranium-235 (C) Uranium-233 (D) Thorium-232

Last Answer : (D) Thorium-232

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

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