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Q. Show the Occurrence of Metals? Earth's crust and sea are the two main sources of metals. In the earth's crust metals occur both in the combined state in the form of minerals
The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
Aluminium utensils should not be kept in water overnight.Give reason
what are the principle underlying the extraction of metals
a. 'Hormones are chemical messengers.' Explain? b. Name the main disease caused due to lack of the vitamin and its source in each of the following: A, B 6 and E.
#question.define .
Real life example on ph determination and Ksp
The spectrum of He is expected to be similar to: (1) H (2) Li + (3) Na (4) He + Ans: Li +
I WANT TO DISCUSS ABOUT IRON CHEMICAL ANALYSIS.POSSIBLE THAT?.
what is abnormal molecular mass
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