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Correct answer is B
Blue anhydrous cobalt (II) chloride changes to pink in water
Ethyne is passed through a hot tube containing organo-nickel catalyst to produce ...
2H2S(g) + SO2(g) + H2O(I) → 3S(s) + 3H2O(I)..........(i) 3CuO(s) + 2NH3(g) → 3Cu(s) + 3H2O(I) + ...
What is the atomic number of Radon? ...
Fats and oils can be obtained from any of the following sources except ...
The oxidation number of phosphorus in PO 3/4 is ...
Which of the following reactions is accompanied by the first ionization energy of an element X? ...