Heavy water is
1 Sea water (H2O+Salt)
2 D2O
3 H2O2
4 None of these
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The process by which an organic compound breaks down into simpler compounds on heating to high temperature is known as 1 Armatisation 2 Polymerization 3 Pyrolysis 4 Reduction
BARC CHIF
Which of the following materials are used for preparing blur-black ink? 1 Gallic acid 2 Tannic acid 3 Ferrous sulphate 4 All of these
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Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
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Which is india’s largest nuclear research reactor?
The human skull rests on which bone? a)Manubrium b)Atlas c)Mandible d)Sternum
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why nitrogen is about 70%(i.e.)highest percentage in environment
Which are the research centres of department of atomic energy?