The purest form of iron is
1 Steel
2 Cast iron
3 Pig iron
4 Wrought iron
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is there any device to convert to mechanical energy into electrical energy
Isotopes are separated by 1 Filtration 2 Sublimation 3 Distillation 4 Crystallization
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Name the indian states in which river ganga flows?
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A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons
How long can arihant stay underwater?
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
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why nitrogen is about 70%(i.e.)highest percentage in environment
An atom of an element with mass number 23 and atomic number 11 will have 1 11 neutrons, 12 protons and 11 electrons 2 11 protons, 12 neutrons and 11 electrons 3 11 neutrons, 11 protons and 12 electrons 4 23 protons and 11 electrons
Name the scientist who has been invited by the Srilankan Governement to have a Study on Employment development?