1.

Write short note on Dihydrogen.

Answer»

Solution :Occurrence of DIHYDROGEN :
(i) Dihydrogen is the most abundant element in the universe and is the principal element in the solar atmosphere.
(II) HOWEVER, due to its light nature, it is much LESS abundant (0.15 % by mass) in the earth.s atmosphere.
(iii) In the combined FORM it constitutes 15.4% of the earth.s crust and the oceans.


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