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Arrange the following compounds in order of decreasing acidity:
- a)I > II > III > IV
- b)III > I > II > IV
- c)IV > III > I > II
- d)II > IV > I >III
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Arrange the following compounds in order of decreasing acidity:a)I >...
Electron donating groups increase the acidity of phenol when present as substituent on the benzene ring while electron withdrawing groups decrease the acidity of phenol.
Cl and NO2 are electron withdrawing groups while -CH3 and -OCH3 are electron donating groups.
However, nitro undergoes resonance also which allows it to better stabilize the negative charge of the oxygen as compare to chlorine and thus acidic character of nitro phenol would be higher than that of chloro phenol.
So, Nitrophenol is the most acidic compound here followed by chloro phenol.
Hence, the correct option is 2.
Most Upvoted Answer
Arrange the following compounds in order of decreasing acidity:a)I >...
Since while checking acidity ...stabilization of carbanions are checked. The group which stabilize carbanion most will be most acidic , so No2 showing -R will stabilize most and then Cl with -I and then Ch3 with +I and then Och3 with +R.
Hence B will be correct answer
Hence B will be correct answer
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Arrange the following compounds in order of decreasing acidity:a)I > II > III > IVb)III > I > II > IVc)IV > III > I > IId)II > IV > I >IIICorrect answer is option 'B'. Can you explain this answer?
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