A mixture of iron filings and sand can be separated by 1 Heating 2 Sublimation 3 Hand picking 4 Magnetic separation

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Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite

2 Answers  

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The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence

3 Answers  

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What is one light year?

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What is the Metabolism ?

2 Answers  

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infra-red rays were first detected by? the intensity level of sound is measured in? the material used for a fuse wire should? radioactivity is a property of? what is the source of electric energy in an artificial satellite? the following is used as a lubricant in heavy machines? supher, bauxite , graphite, phosphorus

2 Answers  

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Wood is the main raw material for the manufacture of 1 Paint 2 Paper 3 Ink 4 Gun powder

5 Answers   Jharkhand Staff Selection Commission JSSC, RRB,

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The chemical used as a ‘fixer’ in photography is 1 Borax 2 Sodium thiosulphate 3 Sodium sulphate 4 Ammonium persulphate

1 Answers   SSC,

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What is a nuclear triad?

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Who suggested that most of the mass of the atom is located in the nucleus? 1 Thompson 2 Bohr 3 Rutherford 4 None of these

3 Answers   Thomson,

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Which of the following is the lightest gas? 1 Nitrogen 2 Hydrogen 3 Ammonia 4 Carbon dioxide

4 Answers  

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Combustion is the process in which 1 Heat is produced 2 Light is produced 3 Heat and light are produced 4 None of these

1 Answers  

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