Answer / sankar

iron is not radioactive because it does not emit neutrons.
this is because of the strong nuclei force between the
protons and neutrons.

What are manufacturing capacities facilities you have?

1 Answers  

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Diamond is harder than graphite because of 1 Difference of layers of atoms 2 Tetrahedral structure of diamond 3 Difference of crystalline structures 4 None of these

3 Answers  

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Who is the second female cosmonaut?

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Which of the following metals remains in liquid form under normal conditions? 1 Uranium 2 Radium 3 Zinc 4 Mercury

4 Answers  

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Mesons are found in 1 ?-rays 2 Laser beam 3 X-rays 4 Cosmic rays

3 Answers   ABC, Indian Army, JSSC,

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what the defference from anti virus and spyware and adware also? Please descript?

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Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these

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tea will coll most easily in a:

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The ore of which of the following metals can be concentrated by hydraulic washing? 1 Tin 2 Sodium 3 Iron 4 Manganese

3 Answers  

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Which variety of glass is heat resistant? 1 Hard glass 2 Flint glass 3 Pyrex glass 4 Bottle glass

2 Answers   PDO,

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When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these

1 Answers  

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Deep blue color is imparted to glass by the presence of 1 Iron oxide 2 Cupric oxide 3 Nickel oxide 4 Cobalt oxide

2 Answers  

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