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R is some alkyl group and that is what I referred as alkyl. For eg,

CH3-CO-CH2-COOC2H5(Ethyl aceto acetate):

ethyl 3-oxo butanoate

Probably E is a copper(I) compound because H3PO2 is a good reductant.

Also chelated complexes are more stable due to the absence of torsional effect. So complexes by EDTA and en are more stable.

Aceto acetic ester is CH3-CO-CH2-COOR

It should be named as: alkyl 3-oxo butanoate

Just resolve and find net displacement on the west and the north and then find the magnitude.

Ans:sqrt{13}

What was that for??

One very easy method:

$x.dy - y.dx = sqrt {x^{2} - y^{2}} .dx$
=> $rac {x.dy - y.dx}{sqrt {x^{2} - y^{2}}} = dx$
Divide both sides by x,
=> $rac { rac {x.dy - y.dx}{x^{2}}}{sqrt {1 - {( rac {y}{x})}^{2}}} = rac {dx}{x}$
Integrating we get,
=> $sin^{ - 1} { rac {y}{x}} = ln{|x|} + C$

Both the above methods are right I think.

It depends upon the type of amino acid:basic or acidic or neutral.

To all of you it need not exist as a zwitterion at pH=7. Only at isoelectric pH it exists as a zwitterion.

Don't get too irritated computer001.

Ya I agree then what's the point in repeating the answers computer001

Ya, then post ur methods atleast. Then we say the method's are different.

Atleast for the first three parts

what's the point in repeating answers?