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`        The weakest base among the following isH-CH3-CH3O-Cl-How to determine weak base And strong base explain`
one year ago

Arun
24739 Points
```							Dear student  I would use pKa values of commons acids to determine this. Remember that the lower the pKa, the weaker the conjugate base: pKa: HCl = -6 CH3OH = 16 H2 = 35 (sometimes 22) ---> not a common acid, but as been done experimentally CH4 = 50 Notice the conjugate bases weakest to strongest go: Cl-, CH3O-, H-, CH3- Based on the lowest pKa value, we can determine the weakest base.  RegardsArun (askIITians forum expert)
```
one year ago
Hemant kumar
15 Points
```							A. I would use pKa values of common acid to determine it  Remember the lowest the pKa,the weaker the conjugate base. pKa:HCl= -6CH3OH= 16H2=35 (sometime 22):- not a common acid but has been done experimentally.CH4=50Therefore the conjugate base weakest to strongest go :- Cl , CH3O , H2 , CH3 . Based on  lowest value we can determine the weakest base
```
one year ago
Boss
13 Points
```							Any strong acid will have a weak conjugate base Consider the given option as conjugate base  Acid - H+ = conjugate base So add H+ to the options to get the acidU get H2, CH4, CH3OH, HCl The strongest acid among these will give weak base Clearly HCl is the strongest among them(CH3OH being alcohol is a weak acid, H2 and CH4 are also weaker acid than HCl) Hence the corresponding conjugate base I.e. Cl- is the weakest among them
```
one year ago
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