Which of the following caused radioactive pollution along the coast of Kerala ? (1) Plutonium (2) Zinc (3) Thorium (4) Radium

Which of the following caused radioactive pollution along the coast of Kerala ? (1) Plutonium (2) Zinc (3) Thorium (4) Radium
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Thorium
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Which of the following caused radioactive pollution along the coast of Kerala? (1) Plutonium (2) Zinc (3) Thorium (4) Radium

Description : Which of the following caused radioactive pollution along the coast of Kerala? (1) Plutonium (2) Zinc (3) Thorium (4) Radium

Last Answer : (3) Thorium Explanation: Thorium-rich monazite sand deposits on the Kerala coast have been responsible for natural radioactive contamination. It has been pronounced on the south-west coastal line of ... been found to have elevated levels of background radioactivity due to high abundance of thorium.

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 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.

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 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

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 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.

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.

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

Which one of the following is not a radioactive element? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Description : Which one of the following is not a radioactive element? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Last Answer : (4) Cadmium Explanation: Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability. Because the nucleus experiences the intense conflict between the two ... show radioactive properties while the fourth one does not show any kind of radioactive properties.

Radioactive disintegration of uranium ultimately results in formation of (1) radium (2) thorium (3) polonium (4) lead

Description : Radioactive disintegration of uranium ultimately results in formation of (1) radium (2) thorium (3) polonium (4) lead 

Last Answer : lead

The beach sands of Kerala are rich in – (1) Calcium (2) Radium (3) Thorium (4) Manganese

Description : The beach sands of Kerala are rich in – (1) Calcium (2) Radium (3) Thorium (4) Manganese

Last Answer : (3) Thorium Explanation: The beach sand in Kerala contains one of the rich deposits of thorium in the world. Thorium, also known as the 'strategic nuclear fuel of India,' is a radioactive ... . The beach sands of Kerala in Palghat and guilon district contain the world's richest monazite deposits.

Starting from radium, the radioactive disintegration process terminates when the following is obtained a)radon b)lead c)uranium d)thorium

Description : Starting from radium, the radioactive disintegration process terminates when the following is obtained a)radon b)lead c)uranium d)thorium

Last Answer : Starting from radium, the radioactive disintegration process terminates when the following is obtained a)radon b) ... . radon C. radium A D. radium B

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.

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

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

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.

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 is used as a moderator in nuclear reactors? (1) Thorium (2) Graphite (3) Ordinary water (4) Radium

Description : Which of the following is used as a moderator in nuclear reactors? (1) Thorium (2) Graphite (3) Ordinary water (4) Radium

Last Answer : (2) Graphite Explanation: Graphite is used a moderator in nuclear reactors.

Which adioactive pollutant has recently drawn the attention of the public due to its occurrence in the building materials? (1) Radium (2) Radon (3) Thorium (4) Rlutonium

Description : Which adioactive pollutant has recently drawn the attention of the public due to its occurrence in the building materials? (1) Radium (2) Radon (3) Thorium (4) Rlutonium

Last Answer : (3) Thorium Explanation: Thorium, a naturally occurring radioactive element, four times more abundant than uranium in the earth's crust.

Uranium eventually decays into a stable isotope of — (1) Radium (2) Thorium (3) Lead (4) Polonium

Description : Uranium eventually decays into a stable isotope of — (1) Radium (2) Thorium (3) Lead (4) Polonium

Last Answer : (3) Lead Explanation: Natural uranium consists of three major isotopes: U238 (99.28% natural abundance), U235 (0.71%), and U234 (0.0054%). All three are radioactive, emitting alpha particles, with ... has 18 members, all of which eventually decay into Pb206, by a variety of different decay paths.

Which of the following is used as a moderator in nuclear reactors ? (1) Thorium (2) Graphite (3) Ordinary water (4) Radium

Description : Which of the following is used as a moderator in nuclear reactors ? (1) Thorium (2) Graphite (3) Ordinary water (4) Radium

Last Answer : Graphite

Uranium eventually decays into a stable isotope of – (1) Radium (2) Thorium (3) Lead (4) Polonium

Description : Uranium eventually decays into a stable isotope of – (1) Radium (2) Thorium (3) Lead (4) Polonium

Last Answer : Lead

Which one of the following is not a radio-active element ? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Description : Which one of the following is not a radio-active element ? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Last Answer : Cadmium

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

Fuel for a nuclear reactor (thermal) is(A) Uranium(B) Plutonium(C) Radium(D) None of these

Description : Fuel for a nuclear reactor (thermal) is (A) Uranium (B) Plutonium (C) Radium (D) None of these

Last Answer : (A) Uranium

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

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

Last Answer : (A) Plutonium

Fuel for a nuclear reactor (thermal) is (A) Uranium (B) Plutonium (C) Radium (D) None of these

Description : Fuel for a nuclear reactor (thermal) is (A) Uranium (B) Plutonium (C) Radium (D) None of these

Last Answer : (A) Uranium

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

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 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

Plutonium (A) Is recovered from spent fuel from thermal nuclear reactor (B) Has much lower melting point (640°C ) compared to thorium (1690°C) (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : Plutonium (A) Is recovered from spent fuel from thermal nuclear reactor (B) Has much lower melting point (640°C ) compared to thorium (1690°C) (C) Both (A) and (B) (D) Neither (A) nor (B)

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

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

Which of the following is not a naturally occurring nuclear fuel? (A) Uranium-238 (B) Thorium-233 (C) Plutonium-239 (D) None of these

Description : Which of the following is not a naturally occurring nuclear fuel? (A) Uranium-238 (B) Thorium-233 (C) Plutonium-239 (D) None of these

Last Answer : (C) Plutonium-239

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

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)

Radon differs from other naturally radioactive elements in which one of the following ways. Is it because radon w) is extremely radioactive x) decays into the element radium y) is a noble gas z) is as chemically active as fluorine

Description : Radon differs from other naturally radioactive elements in which one of the following ways. Is it because radon w) is extremely radioactive x) decays into the element radium y) is a noble gas z) is as chemically active as fluorine

Last Answer : ANSWER: Y -- IS A NOBLE GAS

Who was awarded a Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium?

Description : Who was awarded a Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium?

Last Answer : ANSWER: D -- MARIE CURIE

Which of the following scientists was awarded the Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium? w) John Dalton x) Dmitri Mendeleev y) Emil Fischer z) Marie Curie

Description : Which of the following scientists was awarded the Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium? w) John Dalton x) Dmitri Mendeleev y) Emil Fischer z) Marie Curie

Last Answer : ANSWER: Z -- MARIE CURIE

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 

Which one of the following is radioactive ? (1) Cesium (2) Platinum (3) Strontium (4) Thorium

Description : Which one of the following is radioactive ? (1) Cesium (2) Platinum (3) Strontium (4) Thorium

Last Answer : Thorium

In a nuclear reactor the material use for absorbing neutrons is – (1) zinc (2) radium (3) lead (4) cadmium

Description : In a nuclear reactor the material use for absorbing neutrons is – (1) zinc (2) radium (3) lead (4) cadmium

Last Answer : (4) cadmium Explanation: One isotope of cadmium, 113Cd, absorbs neutrons with very high probability if they have an energy below the cadmium cut-off and transmits them otherwise. The cadmium ... below the cut-off are deemed slow neutrons, distinguishing them from intermediate and fast neutrons.

In a nuclear reactor the material use for absorbing neutrons is (1) zinc (2) radium (3) lead (4) cadmium

Description : In a nuclear reactor the material use for absorbing neutrons is (1) zinc (2) radium (3) lead (4) cadmium

Last Answer : cadmium

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

The mineral monazite is a rich source of thorium, available in large quantity in kerala. A typical monazite sample contains 9% `ThO_(2)` and 0.35% `U_

Description : The mineral monazite is a rich source of thorium, available in large quantity in kerala. A typical monazite sample contains 9% `ThO_(2)` and 0.35% `U_

Last Answer : The mineral monazite is a rich source of thorium, available in large quantity in kerala. A typical monazite sample ... B. 0.266 C. 0.366 D. 0.466

Which State of India has the largest reserves of monazite, with a high thorium content? [CPO SI 2002] (a) Kerala (b) Karnataka (c) Gujarat (d) Maharashtra

Description : Which State of India has the largest reserves of monazite, with a high thorium content? [CPO SI 2002] (a) Kerala (b) Karnataka (c) Gujarat (d) Maharashtra

Last Answer : Ans: (a)

Which State of India has the largest reserves of monazite, with a high thorium content? (1) Kerala (2) Karnataka (3) Gujarat (4) Maharashtra

Description : Which State of India has the largest reserves of monazite, with a high thorium content? (1) Kerala (2) Karnataka (3) Gujarat (4) Maharashtra

Last Answer : (1) Kerala Explanation: Monazite is a reddish-brown phosphate mineral containing rare earth metals. It occurs usually in small isolated crystals. Monazite is an important ore for thorium, lanthanum, and ... , which hold 70 per cent-plus of India's estimated monazite reserve of 18 million tonnes.

Radium is a radioactive substance. It dissolves in dilute `H_(2)SO_(4)` and forms a compound radium sulphate. The compound is a)No longer radioactive

Description : Radium is a radioactive substance. It dissolves in dilute `H_(2)SO_(4)` and forms a compound radium sulphate. The compound is a)No longer radioactive

Last Answer : Radium is a radioactive substance. It dissolves in dilute `H_(2)SO_(4)` and forms a compound ... content D. twice as radioactive as the radium content

Neutrons are obtained by (a) Bombardment of radium with aparticles (b) Bombardment of beryllium with b-particles (c) Radioactive disintegration of uranium (d) None of the above

Description : Neutrons are obtained by (a) Bombardment of radium with aparticles (b) Bombardment of beryllium with b-particles (c) Radioactive disintegration of uranium (d) None of the above

Last Answer : Ans:(c)