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(4) Iodine

Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax

1 Answers  

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A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation

4 Answers   SSC,

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The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron

1 Answers  

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Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these

3 Answers  

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Which of the following shows the masses of three elementary particles in decreasing order? 1 Mesons, Baryons, Leptons 2 Leptons, Baryons, Mesons 3 Baryons, Mesons, Leptons 4 Leptons, Mesons, Baryons

1 Answers  

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Which of the following is in liquid form at room temperature? 1 Cerium 2 Sodium 3 Francium 4 Lithium

1 Answers  

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How does common salt help in separating soap from the solution after saponification? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 None of these

1 Answers  

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iS ELEMENT IRON RADIOACTIVE AND WHY?

1 Answers  

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Which unit is used to measure sound frequency?

4 Answers  

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What is the Respiration ?

2 Answers  

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wheather lightning will attack a aeroplane during flying if not why

2 Answers   TCS,

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Who commanded the challenger’s first flight?

0 Answers  

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