regarding nuclear reations that release a great deal ofenergy, which statement i

Question

regarding nuclear reations that release a great deal ofenergy, which statement is true? (a) In a fission chain reaction, a uranium nucleus struck by ahigh- energy neutronemits two neutrons. (b) Nuclear fission releases more energy per unit mass thandoes a fusion reaction (c) Nuclear reactors produce dangerous levels of airpollution (d) A fusion reaction proceeds through the joining of twoisotopes of hydrogen regarding nuclear reations that release a great deal ofenergy, which statement is true? (a) In a fission chain reaction, a uranium nucleus struck by ahigh- energy neutronemits two neutrons. (b) Nuclear fission releases more energy per unit mass thandoes a fusion reaction (c) Nuclear reactors produce dangerous levels of airpollution (d) A fusion reaction proceeds through the joining of twoisotopes of hydrogen

Explanation / Answer

Ans: (d) (a) In a fission chain reaction, a uranium nucleus struck by ahigh- energy neutronemits two neutrons False: nucleus is not struck by high energy neutron. (b) Nuclear fission releases more energy per unit mass thandoes a fusion reaction (b) Nuclear fission releases more energy per unit mass thandoes a fusion reaction False: fusion releases more energy (c) Nuclear reactors produce dangerous levels of airpollution False: They only produce radiation

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