Caustic soda is
1 NaC1
2 Na2CO3
3 NaOH
4 NaHCO3
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Deep blue color is imparted to glass by the presence of 1 Iron oxide 2 Cupric oxide 3 Nickel oxide 4 Cobalt oxide
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why our head's weight not feel our body?
The filament of an electric bulb is made of 1 Iron 2 Nichrome 3 tungsten 4 Graphite
9 Answers Germanium, Google, Graphite India, Tungsten,
Which of the following is not an isotope of hydrogen? 1 Protium 2 Yitrium 3 Deuterium 4 Tritium
The pink color of Bayer’s reagent is discharged when acetylene is passed through it. This is due to the formation of 1 Acetic acid 2 Ethylene 3 Water 4 Oxalic acid
Atom bomb is based on the principle of 1 Nuclear fusion 2 Nuclear fission 3 Both (a) & (b) 4 None of these
4 Answers ECAT, Group 4 iv, Qnet, UPSC,
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Chemical formula for water glass is 1 Na2Sio3 2 Al2O3 3 NaA1O2 4 CaSiO3
When was the atomic energy regulatory board ( aerb ) constituted?