Which of the following gases is obtained by the reaction of
copper with dilute nitric acid is
1 NO2
2 N2O5
3 O2
4 NO
Atoms are composed of 1 Electrons only 2 Protons only 3 Electrons and protons 4 Electrons and nuclei
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Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
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
What is the Metabolism ?
Caustic soda is 1 NaC1 2 Na2CO3 3 NaOH 4 NaHCO3
Label the following types of erosion in order by their ability to transport materials. Wind erosion, water erosion, glacial erosion, plant/animal erosion.
Explain the Aesthetic and Moral values of Science
0 Answers Mahatma Gandhi University,
Nuclear fission is caused by the impact of 1 Proton 2 Electron 3 Neutron 4 None of these
4 Answers Jharkhand Staff Selection Commission JSSC,
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,
what is the food constitution of ragi and rice
Science as a social endeavor .Explain
0 Answers Mahatma Gandhi University,