Heavy water is
1 Tritium oxide
2 Deuterium oxide
3 Rain water
4 None of these
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Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume
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hai i am koti reddy panta.studying 3rd mca.i failed in my degree. shell i consider those subjects as backlogs
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