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,Potassium-42 is a radioisotope that nutritionists use to determine whether the body is effectively using potassium at the cellular level. The half-life of potassium-42 is 12.4 hou
what is mean of biamperometric titration
Which of the following has the least energy: (1) 2p (2) 3p (3) 2s (4) 4d Ans: 2s
Although cholrine is electoon withdrawing group.yet it is ortho nd para directing in electrophilic aromatic substitution reactants.why? Ans) Halogens are an exception of the dea
Chromium has the electronic configuration 4s 1 3d 5 rather than4s 2 , 3d 4 because: (1) 4s and 3d have the same energy (2) 4s has a higher energy than 3d (3)4s 1 is
Stability of a nucleus and its binding energy
Chemical nature
Q. Show the Hydrides of Boron and Aluminium? Boron forms a series of volatile hydrides which resemble in some respects, e.g., volatility and covalent nature, the hydrides of c
The oxygen of the hydronium ion The oxygen of the hydronium ion has approximately tetrahedral geometry and is therefore sp 3- hybridized. Two of the sp 3 hybrid orbitals conta
What is a salt bridge? Salt bridge is a device used to link two electrodes on electrochemical cell. It maintains electrical neutrality and internal continuity. It is shown by
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