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Chemistry: Post your doubts here!

S

sitooon

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sumeru said:
OH- oxidises to give O2........you must be knowing that metals goes to cathode and non metal to anode......and at anode, oxidation takes place....and according to our E values, less positive have more tendency to get oxidised...
Click to expand...
My friend you said it , " less positive have more tendency to get oxidised... "
So its oxygen which will be at anode ( less positive E value ) NOT Br .. :LOL:
 
itallion stallion

itallion stallion

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goodluckayesha said:
in 4e u can join the amino acids in any order but there should be 3 amino acids present and 2 peptide bonds present
hmmm we use only dilute HNO3 when theres reaction with a phenol and H2SO4 and HNO3 when theres benzene or whtever got it?
Click to expand...
Thanks a lot!what if there is a methyl group at position 1 and OH at position 4 in benzene ring what will I use for nitration?
Reminder for the alpha helix structure( plz a simpler one)
Thanks
 
S

sumeru

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sitooon said:
My friend you said it , " less positive have more tendency to get oxidised... "
So its oxygen which will be at anode ( less positive E value ) NOT Br .. :LOL:
Click to expand...
Ahhhh...what did i do up there......sorry....i,myself got pretty confused ....let me think....:p
 
Haya Ahmed

Haya Ahmed

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BY1W0k.png


Please Help me !!!
 
goodluckayesha

goodluckayesha

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itallion stallion said:
Thanks a lot!what if there is a methyl group at position 1 and OH at position 4 in benzene ring what will I use for nitration?
Reminder for the alpha helix structure( plz a simpler one)
Thanks
Click to expand...
no matter wht else is present as far as ik if OH is present then for nitration u use dilute HNO3
yh i posted tht n u saw it also :p
 
Haya Ahmed

Haya Ahmed

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sitooon said:
Its , Cl2 + KI ---> KCl + I2
Oxidation state of element is zero .. and in KI oxidation state of iodine is -1 ... therefore it changes from -1 to 0 ( increase in oxidation state ) which is oxidation
Click to expand...
Thanks :) and If you don't matter can you explain this one too ! :)
2yqqaz.png
 
S

sumeru

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sitooon said:
My friend you said it , " less positive have more tendency to get oxidised... "
So its oxygen which will be at anode ( less positive E value ) NOT Br .. :LOL:
Click to expand...
My friend, i tried doing it using the E values......but, i did not match with what we have actually studied...but on our coursebook, an list of increasing ease of oxidation of elements are given...see that...it will help you
 
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