Description : The decay product of tritium (a beta emitter) is (A) Lithium (B) Helium (C) Deuterium (D) Hydrogen
Last Answer : (B) Helium
Description : Hydrogen bomb employs the nuclear fusion of (A) Hydrogen (B) Deuterium (C) Tritium (D) Helium
Last Answer : (B) Deuterium
Description : Which one is the radioactive isotope of hydrogen? (A) Deuterium (B) Ortho-hydrogen (C) Tritium (D) None of these
Last Answer : (C) Tritium
Description : The source of enormous energy of sun is a)Fusion of hydrogen to form helium b)Fission of uranium c)Fusion of deuterium and tritium d)Fusion to tritium
Last Answer : The source of enormous energy of sun is a)Fusion of hydrogen to form helium b)Fission of uranium ... and tritium D. fission of tritium to form helium
Description : The lightest radioactive element is (1) deuterium (2) polonium (3) tritium (4) uranium
Last Answer : tritium
Description : Which of the following is a fuel for a fusion reactor (thermonuclear reactor)? (A) Deuterium and tritium (B) U-233 (C) Thorium (D) Heavy water
Last Answer : (A) Deuterium and tritium
Description : Heavy water is – (1) Deuterium (2) Rain water (3) Tritium oxide (4) Deuterium oxide
Last Answer : (4) Deuterium oxide Explanation: Heavy water is deuterium oxide (2H2O). It is a form of water that contains a larger than normal amount of the hydrogen isotope deuterium (2H or D, also known as heavy ... 1 isotope (1H or H, also called protium) that makes up most of the hydrogen in normal water.
Description : Heavy water is (1) Deuterium (2) Rain water (3) Tritium oxide (4) Deuterium oxide
Last Answer : Deuterium oxide
Description : Commercial power generation from fusion reactor is not yet possible, because (A) It is difficult to control nuclear fusion reaction (B) The fuel required (i.e., deuterium & tritium) is ... to initiate fusion reaction (D) Quantity of fuel required for initiating fusion reaction is prohibitively high
Last Answer : (A) It is difficult to control nuclear fusion reaction
Description : Commercial power generation from fusion reactor is not yet possible, because (A) It is difficult to control fusion reaction (B) The fuel required (e.g. deuterium and tritium) is scarce ... to initiate fusion reaction (D) Quantity of fuel required for initiating fusion reaction is prohibitively high
Last Answer : (A) It is difficult to control fusion reaction
Description : Both tritium and deuterium have the same number of (A) Neutrons (B) Electrons (C) Protons (D) Nucleons
Last Answer : (A) Neutrons
Description : Neutrons have mass approximately equal to that of __________ atoms. (A) Hydrogen (B) Helium (C) Deuterium (D) None of these
Last Answer : (A) Hydrogen
Description : All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent. (A) Deuterium (B) Hydrogen (C) Neon (D) Helium
Last Answer : (B) Hydrogen
Description : Hydrogen differs from deuterium in __________ properties. (A) Radioactive (B) Physical (C) Chemical (D) All (A), (B) and (C
Last Answer : (B) Physical
Description : Of the following, which is the best fuel for a nuclear fusion reactor: w) hydrogen x) lithium y) deuterium z) helium
Last Answer : ANSWER: Y -- DEUTERIUM
Description : The three isotopes of hydrogen are protium, tritiu and: w) heprin x) helium y) duodenum z) deuterium
Last Answer : ANSWER: Z -- DEUTERIUM
Description : Pick out the wrong statement. (A) The ratio of the density of the 'nucleus' to that of the 'atom' is 10 12 (B) α-particle is identical with a doubly charged helium ion (C) The mass of deuterium atom is half that of helium atom (D) Gamma rays are high energy electrons
Last Answer : (D) Gamma rays are high energy electrons
Description : Pick out the wrong statement. (A) The disintegration rate of a radioactive substance cannot be increased by heating it (B) Electrons have negligible mass and unit negative change (C) Deuterium atom has one proton and two neutrons in its nucleus (D) Cadmium is capable of absorbing neutrons
Last Answer : (C) Deuterium atom has one proton and two neutrons in its nucleus
Description : In the sun, helium is produced from hydrogen by: w) radioactive decay x) disintegration y) fission z) fusion
Last Answer : ANSWER: Z -- FUSION
Description : The lightest radioactive element is - (1) deuterium (2) polonium (3) technetium (4) uranium
Last Answer : (3) Technetium Explanation: Tritium is a radioactive isotope of hydrogen. It is the lightest radioactive element.
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.
Description : Heavy water used in the nuclear reactors to slow down the speed of neutrons is (A) Highly purified water (B) A compound of oxygen and deuterium (C) Water having dissolved salts of heavy metals (D) None of these
Last Answer : (B) A compound of oxygen and deuterium
Description : Heavy water' is termed as 'heavy' because it is (A) Denser than water (B) An oxide of deuterium (C) A heavy liquid (D) An oxide of heavier isotope of oxygen
Last Answer : (B) An oxide of deuterium
Description : The composition of sun is 90 % Hydrogen and Helium and Heavy metals ratio is:
Last Answer : 7.8 %
Description : Heavy water is - (1) Monoterium oxide (2) Polyterium oxide (3) Deuterium oxide (4) Trisium oxide
Last Answer : (3) Deuterium oxide Explanation: Heavy water (D2O) is also called deuterium oxide. It is water composed of deuterium, the hydrogen isotope with a mass double that of ordinary hydrogen, and oxygen.
Description : The isotope deuterium of hydrogen has : -Science
Last Answer : Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. The isotopes of hydrogen have, respectively, mass numbers of one, two, and three.
Description : Deuterium differs from Hydrogen in having: A. Different atomic number but same atomic weight B. Different atomic number and different atomic weight C. Same atomic number and different atomic weight (Answer) D. None
Last Answer : C. Same atomic number and different atomic weight (Answer)
Description : In an alkyl halide substitution of hydrogen by deuterium results in slow formation of ion pair. This is known as? a. Ortho effect b. Mesomeric effect c. Secondary kinetic isotope effect d. Primary kinetic isotope effect
Last Answer : c. Secondary kinetic isotope effect
Description : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the
Last Answer : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic ... )^(234)Th` D. `._(91)^(234)Pa`
Description : Coolant used in a fast breeder reactor is (A) Molten sodium (B) Heavy water (C) Ordinary water (D) Helium
Last Answer : (A) Molten sodium
Description : Nucleus of tritium has __________ neutrons. (A) 1 (B) 2 (C) 3 (D) 5
Last Answer : (B) 2
Description : __________ gas is normally not used as a coolant in a nuclear reactor, because of its high neutron capture cross-section. (A) Nitrogen (B) Hydrogen (C) Helium (D) Carbon dioxide
Last Answer : (A) Nitrogen
Description : Pick out the wrong statement. (A) Minimum number of degree of freedom of a system is zero (B) Degree of freedom of a system containing a gaseous mixture of helium, carbon ... ) Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation
Last Answer : (D) Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation
Description : On large scale, tritium is produced by which of the following nuclear reaction?
Last Answer : On large scale, tritium is produced by which of the following nuclear reaction? A. `._(3)^(6)Li + ._(0)^(1 ... )^(1)H to ._(1)^(3)T` + other fragments
Description : The radioisotope , tritium `(""_(1)^(3)H)` has a half-life of 12.3 years. If the initial amount of tritium is 32 mg , how many milligrams of it would
Last Answer : The radioisotope , tritium `(""_(1)^(3)H)` has a half-life of 12.3 years. If the initial amount of tritium is 32 ... A. 1 mg B. 2 mg C. 4 mg D. 8 mg
Description : How would you expect the tritium to get to the ocean?
Last Answer : By entering an open watershed
Description : How old is a bottle of wine if the tritium activity is 25 counts/hr and new wine has an activity 200 counts/hr The half life if tritium is 12.3 years.?
Last Answer : I don’t understand the question
Description : Tritium is an isotope of
Last Answer : Hydrogen
Description : Which one of the following is used for dating very old objects of archaeological importance? (1) Phosphorus-31 (2) Tritium (3) Radium (4) Carbon-14
Last Answer : (4) Carbon-14 Explanation: Radiocarbon dating (usually referred to as simply carbon dating) is a radiometric dating method that uses the naturally occurring radioisotope carbon-14 (140 to estimate the age ... (fraction) of 14C declines at a fixed exponential rate due to the radioactive decay of14C.
Description : What precautions should be taken while working in high tritium areas?
Last Answer : Use respirators, plastic suits, VP suits if concentration of tritium is very high. Avoid getting hurt while working because tritium may go through the skin by sweat to the blood. If by chance there is tritium intake in the body drink lots of fluids.
Description : The half life of tritium is about: w) 3,500 years x) 40 years y) 12.3 years z) 3.7 years
Last Answer : ANSWER: Y -- 12.3 YEARS
Last Answer : Carbon-14
Description : (4) less soluble in blood than nitrogen at high pressure Explanation: Deep-sea divers have their oxygen supply mixed with helium in order to avoid the toxic nature of oxygen under extreme pressures. The ... blood which blocks blood flow as the diver comes to the surface of the sea from underwater.
Last Answer : The chemical bahaviour of an atom depends upon - (1) the number of protons in its nucleus (2) the number of neutrons in the nucleus (3) the number of electrons orbiting around the nucleus (4) the number of nucleons in the nucleus
Description : At what level do hydrogen and helium gas predominate ?
Last Answer : Answer : The predominance of hydrogen and helium gas is seen at the level of the exosphere.
Description : Statement-1 : Energy is released in the nuclear fusion of hydrogen nuclei to form helium nuclei Because Statement-2 : Binding energy per nucleon of he
Last Answer : Statement-1 : Energy is released in the nuclear fusion of hydrogen nuclei to form helium nuclei Because ... Statement-2 is false, statement-2 is true
Description : If there are 3 moles of hydrogen 6 moles of oxygen and 9 moles of helium in a 10 L vessel at 27 and degC the total pressure of the gas mixture will be?
Last Answer : What is the answer ?
Description : Which gas is commonly used in balloons and airships? A. Hydrogen B. Helium C. Carbon D. Hydrogen Sulphide
Last Answer : ANSWER: B
Description : 25 Which gas is commonly used in balloons and airships? A. Hydrogen B. Helium C. Carbon D. Hydrogen Sulphide
Description : The ultra violet radiations of the Sun do not reach the Earth because the upper layers of the atmosphere contain (a) oxygen (b) helium (c) ozone (d) hydrogen
Last Answer : Ans:(c)
Description : In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine