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प्रश्न
Which of the following is not a fossil fuel?
(a) coal
(b) petroleum gas
(c) biogas
(d) natural gas
उत्तर
Biogas
Fossils form deep under the earth's surface from the prehistoric remains of living organisms. Biogas is a mixture of methane, carbon dioxide, hydrogen and hydrogen sulphide. It is produced by the anaerobic degradation of animal wastes such as cow dung in the presence of water.
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संबंधित प्रश्न
State whether the fission of uranium-235 is caused by low energy neutrons or high energy neutrons.
What is the source of energy of the sun and other stars?
State the disadvantages of nuclear energy.
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how do control rods control the rate of fission?
how is heat removed from the reactor core, and what use is made of this heat?
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
Name the process represented by this equation and describe what happens during this reaction.
Name the following nuclear reaction:
\[\ce {^235_92U +^1_0n-> ^90_38Sr + ^143_54Xe + 3^1_0n + γ}\]
What changes will take place in the mass number and atomic number of the nucleus Y if it emits gamma radiations?
Complete the following fission reaction:
\[\ce{_92U^235 _0n^1 -> _aSb^133 + _41Co^b + 4_0n_1 + energy}\]
Write down the values of a and b.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
