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iTeachChem
A Study Community for Everyone and Everything. We have weekly sessions on Spirituality, Math and Science! JEE, NEET prep? All doubts are crowdsourced. Hare Krishna!
JoinDoes nitroso group give positive kjeldahl's test for nitrogen?
Hello
I know that kjeldahls test for nitrogen is not given by stuff like nitro group, nitrogen in ring and azo group
What about -NO? My sir said it doesnt show but I cant find info about it anywhere...
d³s hybridization in Coordination Compounds
If asked for the hybridization of any of these compounds below, should I mention sp³ or d³s? D-block chapter mentions nothing about this for KMnO4 even.

Hydrocarbons, Saytzeff/Hofmann product
The answer is Hofmann product here even though the base is small. I assume its because N(CH3)3 is a poor LG?
* Is N(CH3)3+ a poor leaving group? Why/why not?
* If it is, what decides whether 'small base' dominates or 'poor LG' dominates?...

solutions
a 95 mass percent solution of ethanol is further diluted with water if the mole fraction of ethanol in dillute solution is 0.25 what is the mole fraction of water in the dilute solution is it still an ideal solution
dude what is going on in this question...
Integration and limits
My approach was writing it as $\frac{\int_{x}^{2x}{\frac{sin^{m}(x)}{x^{n}}}}{x} \cdot x$ and then approximating the fraction thing to derivative of integral of $\frac{sin^{m}(x)}{x^{n}}$ which is that function itself, but unable to go on from there.

Resonance struc
How to draw all reso struc for this? More imp, how can we tell number of reso struc of this without drawing all?
