ornaic questions.... (may be silly... but not for me !)

IN THE THIRD QUESTION,, one position contains CH3 and the other NH2...

13 Answers

1
skygirl ·

1
varun ·

1) CH3COOH

2) C5H10NH

1
varun ·

5) First

1
skygirl ·

NOW!!!!!!!!! C'MON YAAR... DUN GIVE ME JUST ANSWERS...
I WANT REASONS RE........ AM HOPELESS IN CHEM.. UNDERSTAND....
GIVE REASONS...

Y CH3COOH??

1
varun ·

1) Because in CH3COOH, the CH3- Group is electron donating, and the difference in polarity of O-H bond is high .. but in the case of phenol, the polarity between O-H bond is not that high because the lone pair on O is in conjugation.

Therefore, it is easier for acetic acid to give away H+ and phenol

2) The lone pair on N in aniline is in conjugation with the Î -bond. But in the case of first compound, (not good at naming ;( ) N has the lone pair and can donate it , thus being more basic..

5) In the first compound, CH3- is electron donating while in the second compound, CF3- it is electron withdrawing, thus making O-H bond more polar and thus making it more acidic.

3) I think - meta < (ortho < para) < cyclohexanamine.

Cause, NH2 is a o- p- directing group and if CH3 is at meta position, it won't hinder the conjugation much and the lone pair is not available for donation.

1
voldy ·

check the 3rd and 4th Q's , I thinkk there are some NH2 gps missing.
in the fourth , is it Donate?

1
°ღ•๓яυΠ·

for d last q i feel d second compd is more basic reason being dat -ve charge on O will d stabilized by F

correct me if m wrng!

1
varun ·

-ve charge on O will be stabilized by F

I don't get it .,.

F will withdraw the electrons and thus make it less basic ..

1
°ღ•๓яυΠ·

d base wich wud b more stble wud b basic na?
fisrt one CH3 has +i effct so it will increses d -ve chrge on oxygen n make it unstble weras F will hav -i effct n will widrwn or say delocalise d elctrons n make it more stable

(may b i m wrng)

1
varun ·

More basic => Ability to give electrons. If F delocalises the electrons, then the electrons won't be available for donation right ?

1
voldy ·

@ integrations , the your reason seems alright but it's for the stability of the conjugate base of the give acid, as it's more stable , the second one is more acidic , hope you got it.

1
varun ·

for d fisrt one simple reason is dat phenoxide ion is more basic so .conjugate acid is less

I think phenoxide ion is less basic than acetate. Phenoxide has -ve charge over C in the resonance structures while in acetate, it is over O...

1
voldy ·

no , in phenoxide all struc are diff , but in AcOH , they both are same. hope u got it.

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