Answer / guest

(4) zirconium

Answer / punit singh ara

uranim

Answer / mohit rajput

uranium

What are quasars?

0 Answers  

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What is condensation? 1 Change of gas into solid 2 Change of solid into liquid 3 Change of vapour into liquid 4 Change of heat energy into cooling energy

2 Answers  

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Brass gets discolored in air because of the presence of which of the following gases in air? 1 Carbon dioxide 2 Oxygen 3 Hydrogen sulphide 4 Nitrogen

2 Answers  

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Which of the following has the lease penetrating power? 1 Alpha particles 2 Beta particles 3 Gamma rays 4 All have the same penetrating power

3 Answers  

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Describe the evolution of science and its impact on society

0 Answers   Mahatma Gandhi University,

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Which are the two reactors at the indira gandhi centre for atomic research ( igcar )?

0 Answers  

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Which of the following fibers is least prone to fire? 1 Rayon 2 Nylon 3 Cotton 4 Terycott

2 Answers  

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In an atomic explosion, enormous energy is released which is due to the 1 Conversion of neutrons into protons 2 Conversion of chemical energy into nuclear energy 3 Conversion of mass into energy 4 None of these

2 Answers   AHH, CMRL,

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iS ELEMENT IRON RADIOACTIVE AND WHY?

1 Answers  

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Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray

2 Answers  

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Rust is 1 A mixture of Fe2O3 and Fe(OH)3 2 A mixture of FeO & Fe(OH)2 3 Fe2O3 only 4 A mixture of Fe2O3.3H2O and Feo

2 Answers   AFMC,

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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

2 Answers  

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