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when hydroxamic acids reacts in the presence of strong acid it
undergo rearrgement to form primery amine.first formation of nitrene
[electrophile] takes place which under go intramolecular rerrangement
to form alkyl iso cyanate,by hydrolysis it form primery amine.
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covalent bonding is equal sharing of electron,mainly formed between
almost equal electronegative element.for example single bond,double
bond,triple bond.other type is dative or cordinate bond where unequal
sharing of electron is there after completion of octet.for example SO2
and SO3
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ya it manly have type of unit cell,packing fraction, coordination no,formula of density and defects etc.
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Hey Ganesh, its a very good question. if any group whether of -R or +R in benzoic acid derivatives it increases acidic nature. to state this in an example, ortho nitro benzoic acid is more acidic than para. actully in that case ortho group inhibit the +R effect of ring towards -COOH group so acidic nature increases. ortho effect decreases basic nature for example, para methyl aniline is more basic than ortho.
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kolbes electrolysis is lysis of pot or sodium salt of acids.mechnism is ionic cum free radical.It's used for synthesis of alkane,alkene and alkyne.for example, potassium succinate gives ethene and sodium maleate gives
ethyne. fredal craft reaction is basically alkylation or acylation of aromatic compounds in presence of lewis acid. for all other mechanism u study my book elixir by arun kulshrestha
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I think u want alcohol synthesis from grignard reagent,right? Its quite simple:
If HCHO reacts with RmgX it gives primary alcohol,RCHO gives secondary,RCOR gives tertiary alcohol.
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Apply formula of steric no=number of sigama bond+no.of lone pair for total 2 hyb is sp,3 sp2,4sp3,5sp3d,6sp3d2 etc. any atom surround by many atom is known as central element for example H2SO4 sulphur,HNO3 nitrogen etc
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Donation of electron to electron defecient central atom is known as
back bonding .for example, boron tri floride is weak lewis acid due to
ppi-ppi back bonding.In bonding of H2SO4 pi bond formed by p orbital
of O and d orbital of S so known as d pi p pi bonding other example is
HClO4.
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here magnese links with six strong ligand so complex is low spin intra orbital means d2sp3 hybridisation because steric number is 6. any how shape is octahedral with all 90 angle.remember CN is strong ligand. other example of stong ligand is CO,etylenediamine etc.
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stability of carbocation is explain by inductive effect,hyperconjugation and resonance.maximum stable is tricyclopropylmethylcarbocation,than triphenylmethylcarbocation than tertiary,secondary,primary.this can be explain by effect of neutralisation means more neutralisation more stability
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in case of isocyanides electronegativity of nitrogen is more so it bear negative charge while carbon with positive charge.water addition on this group to form primary amines and formic acid,add two mole of water
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Kedarnath,
Can you please elaborate the question. It doesn't seems to be clear.
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Any element contains how much valency electron that actually take part
in covalent bonding. for example: osmium and ruthenium maximum covalency 8, sulphur dioxide covelancy is 4 while sulphur trioxide is 6.
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u must improve ur mechanism like i effect types of reaction,resonance etc.other topic is alkane,alkene,alkyne,grignard reagent,alkadiene,cycloalkane and isomerism
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- It is basically ionic structure with strong lattice,
- has high melting point
- uses cryolite for its electrolysis,
- is known as alumina
- uses for extraction for aluminium
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In oxidation there is no method, first u check key element which undergoes redox
change then balance charge,last apply hit and trial method for remaining elements.apply ur self in this eqation
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-from bengene we form cumene in 1 step by rection with propene or propyl chloride. - when propyl chloride reacts there is molecular reargement of carbocation -good method for synthesis of cumene is reaction of benzene with
propaneoyl chloride then clemmenson reduction.this is better method
than alkylation because there is chances of poly alkylation in
alkylation which is not in acylation[intermediate acylium cation is
stable
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Actully each type of hybridisation have fix bond angle so we easily determine s charecter for example sp hyb bond angle 180,sp2 120,sp3109
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For halogens inductive effect is dominating than mesomeric effect due to
electronegativity of halogens. Due to this reason they are counted in deactivating group in ar nu substitution rection
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Carbon does not forms ionic compound because it cannot satisfy the condition of born haber cycle,by all means enthalpy of rec. must be negative.
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