Which of the following is used as a moderation in nuclear
reactor?
1 Ordinary water
2 Radium
3 Thorium
4 Graphite
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What is the Protoplasm ?
Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen
Rusting of iron involves 1 Oxidation 2 Reduction 3 Displacement 4 Decomposition
Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these
Why cMadurai is hotter than chennai?
Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these
Which of the following is a chemical change? 1 Rusting of iron 2 Tempering of iron 3 Melting of iron 4 Bending of iron
The type of glass used in making lenses and prisms is 1 Soft glass 2 Pyrex glass 3 Jena glass 4 Flint glass
Explain the Aesthetic and Moral values of Science
0 Answers Mahatma Gandhi University,
in earth 1degree equals how many kilo meters?
what is the force that helping the earth to revolve by its own.
The hydrogenation of the vegetables oils takes place in the presence of finely divided 1 Aluminium 2 Charcoal 3 Silica 4 Nickel