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comnplex numbers 2

if i let z = iy i get B and C...
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complex numbers

i put z = x + yi but got no clues i guessed the answer right somehow but i need help...
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HI+Ether

does anyone know the mechanism that y the 1st case happens n not the 2nd one.
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IUPAC

in ii,iii,iv part would e part at last unlike i?
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Bond angle

Isn't benzene bulkier than those 2 CH3 grps. to cause more bond angle ?
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Oxidation

Why OH in phenol is not oxidised?
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No. of resonating str.

In case of phenol , no. of resonating structures is 5 or 4?
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Acidic dehydration

i don't get the meaning of this paragraph, could anyone summarize n answer whether it is SN1 or SN2, and the ques.PFA
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Mn disproportionation

isn't the opposite of this ques written in ncert here? it has oxygen instead of water, im quite confused
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Friedel craft rxn.

Why aniline, phenol doesn't undergo Friedel craft rxn. ,( ig they might go under vigorous conditions )unlike anisole as all exert +M

reimer tiemann

CHCl2 para position par kyu nhi attach hua?
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Organic, identify A and B in the following reaction

Reactant (shown in picture) + KCN gives A A + H2/Pd gives B...
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d-block dichromate, Amines statement MCQ

Dont you think 5th and 6th mein options are a bit weird? For instance there are only 6Cr-O bonds in dichromate and since all of them are equivalent in length both options b and c should be correct and also 6th wale mein what exactly is the wrong statement?
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Amines, which coupling reaction happens?

A solution contains 1 mol each of p-toluene diazonium chloride and p-nitrophenyl diazonium chloride. To this, 1 mol of alkaline solution of phenol is added. Predict the major product and explain your answer.

Max.H under influence of Cylinder

yupp looks easy but my goofy ahhhhh self messed up the integration somewhere please help out we can also do this by work energy theorem?? idk cant figure that one out...
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Importance of Taxonomic aids

i got this question is taxonomic aids important for exam point of view or not like keys, couplet, monograph etc. and if yes then what does they mean because i've been trying to understand them and cant do. also if you guys have questions for this topic can you share it