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what is the difference between the allotrope and polymorphs
Explain the following terms: (a) Asymmetric molecule (b) R and S notations
Number of nodal centres for 2s orbital: (1) 1 (2) 0 (3) 4 (4) 3 Ans: 1
discovered boron family
how many methods to remove color impurities in chemical compounds?
The only nonradioactive isotope of fluorine has 9 protons and 10 neutrons. a. What is its mass number. b. Write the full symbol of this atom.
f block elementstypes
why boron shows +3 as well as-3 oxidation states?
Face cetered cubic structure In FCC structure, the atoms are situated at each of the eight corners and at the centers of all cube faces of the unit cell. Every face centered at
The orbital angular momentum of an electron in 2s -orbital is: (1) 1/2 h/ 2Π (2) h/ 2Π (3) √2 h/ 2 Π (4) Zero Ans
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