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The correct ground state electronic configuration of chromium atom is:
(1) [Ar] 3d5 4s1
(2)[Ar]3d4 4s2
(3) [AR]3d6 4s0
(4)[Ar]4d5 4s1
Ans: [Ar] 3d5 4s1
mass of atom
Lithium hydration energy
In this synthesis of indole the addition of keto thioether to choloroamine to give sulphonium ion. this reaction is carried out at low temperature . why?
what are ions
Q. What are Hexahalides? Hexahalides: S, Se-and Te react with excess of fluorine to give the corresponding hexafluorides. Fluorine being the most electronegative oxidises the
Acetylene tetrachloride (Westron), CHCl 2 ·CHCl 2 It is as well called as sym. tetrachloroethane. It is made by the action of chlorine on acetylene in existence of a catalyst
Post-harvest treatments Certain post-harvest treatments to fruits and vegetables can bring down spoilage significantly. A wide range of chemicals used to control post-harvest d
Soya bean products Soya bean and its flours are used in the preparation of a variety of fermented and non-fermented products in Asian countries. However in India, food use of
group1 metal reacts execess of oxygen
d block elements cofiguration
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