Rusting of iron involves
1 Oxidation
2 Reduction
3 Displacement
4 Decomposition
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atoms are composed of Electrons & Protons or Electrons & Protons ?
List and explain two instances of Correlation Science with Life Situation
0 Answers Mahatma Gandhi University,
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Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
2 Answers WBCS West Bengal Civil Service,
Which of the following is used in making artificial sweetener saccharin? 1 Benzene 2 Toluene 3 Phenol 4 Aniline
Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of 1 Nitrates 2 Zeolites 3 Sulphontes 4 None of these
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