Recently Active Chemistry Questions

*Image* ...plzzzsolve q 10...top most ...

can someone give me the examples of hydrophobic and hydrophilic groups .....????????? ...

y i crossed aldol condensation v prefer ,1 aldehyde with no alpha hydrogen and other aldehyde or keto with alpha hydrogen der's a possibility for formation of 2 pdts.how can u minimise d possibility of 1 pdt out of d 2. ...

why in roasting heating is done below melting point and in calcination above melting point ???????????????? ...

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why dipole moment must change as vibration occurs ...

is study of infrared spectra of organic compounds there in IIT syllabus ...

*Image* wats the difference betw the 2 abv .............. help... luks like ive got R , S system all rong .... pls help me out .... ...

does cuprous pyrite ore give iron ........ifound these in O.P AGGARWAL ...

benzoic acd + hydrazoic acid in presence of conc. H2SO4 → ?? A.Aniline' b.benzamide c.sodium benzoate d. C6H5CON3 ...

convert ethane to methane.. pls tell d shortest way u know . ...

why the reverberatory furnace can be used for both oxidation and reduction??????????????????????? ...

why there is unimolecular layer formation in chemisorption ??????? ...

plz explain difference between superimposition and superposition of structers ......................... ...

why change in entropy and enthalphy keeps on increasing and decreasing respctively as time passes and gets equal on at equilibrium?????? ...

why adsorption can take place in solids only if there is a unimolecular layer of the gas molecules on the surface ?????????? ...

in case of transition metals there are free valencies at the surface ..what are these ??? ...

What are the elements of symmetry in a crystal lattice? ...

Its a highly silly doubt....I know weaker bases are better leaving groups what if the leaving group is the same, then which of the two orgainc compunds would give a faster rxn ? for example :- which out of the following two w ...

why rotation not possible in case of double bond but in case of triple bond ??????? ...

Does phenol react with NaHCO3 ? I thought it did not but then in a text book called Bahl & Bahl they showed a rxn where it reacted with Sodium bicarbonate to form sodium phenoxide and water ?? ...

sigma bond has cylindrical symmetry .....explain..... ...

resonance is important particularly when the contributing structures are equivalent in energy .why??????????? ...

Can fuming nitric acid be used instead of nitration mixture to carry out nitration of benzene ?? ...

An electron moving with velocity "v" is found to have certain de broglie wave length.Calculate the wave length to be possessed by the nuetron to have same de broglie wave length. Please show and explain Thanks ...

how can we convert 53.1g/mol in terms of u ??? ...

Pls explain why does this happen -------- Phenol on reaction with H2SO4 @ 200C gives o-phenolsulphonic acid and @ 1000C it gives p-Phenolsulphonic acid ?? ...

Why are phenols stronger acid than water? ...

*Image* sorry, i forgot to put the benzene ring...... Is the name 3-Chloro-4-methylnitrobenzene or 2Chloro-1-methyl-4-nitrobenzene? ...

i am finding it tough to remember the large no. of organic reactions and mechanisms.................Plz help ...