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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

Chemical Kinetics

This question went over my head. The answer is 1 but which statement is correct. I think it's B but not sure
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Grav. potential at Point P due to Disk and half disk

Mostly doubtful if my integration is correct Half disk I'm doing rn please proof check that as well...
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calorimetry

5g ice at 0 C is mixed with 5g os steam at 100C. what is the final temp ?? my approach converting all to same state at same temp -> ice to water at 0C requires m(Lf) heat...

why does freezing point decrease on lowering of vapour pressure?

yeah thats the question, on addition of non volatile solvent why does this happen?

Nucleophilic Subs

Direct KCN nahi daal sakte kya que7