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Which of the following was to be discovered first in the
chromo sphere of the sun?
1 Xenon
2 Helium
3 Neon
4 Krypton
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Which of the following gases is not known as green house gas? 1 Carbon dioxide 2 Methane 3 Nitruous oxide 4 Hydrogen
4 Answers ACIO, Infosys, ptet,
Which of the following metals remains in liquid form under normal conditions? 1 Uranium 2 Radium 3 Zinc 4 Mercury
The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold
13 Answers FCI, University of Ilorin,
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
The country helped in arihant’s built?
Water is a good solvent of ionic salts because 1 It has no colour 2 It has a high boiling point 3 It has a high dipole moment 4 It has a high specific heat
The chemical used as a ‘fixer’ in photography is 1 Borax 2 Sodium thiosulphate 3 Sodium sulphate 4 Ammonium persulphate
Which is india’s primary nuclear facility?
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
why is ohms law not followed in long transmisson lines
Which is the most famous comet?
Which of the following is used for removing air bubbles from glass during its manufacture? 1 Feldspar 2 Arsenious oxide 3 Potassium carbonate 4 Soda ash
Biological Sciences 
