Question:
Identify the correct trend of acidic strength for the given alcohols:
Identify the correct trend of acidic strength for the given alcohols:
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Lesser the steric hindrance, higher the acidity in alcohols.
Primary alcohols are generally more acidic than tertiary ones.
Updated On: May 19, 2025
- (i)>(iii)>(ii)
- (ii)>(i)>(iii)
- (ii)>(iii)>(i)
- (iii)>(ii)>(i)
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The Correct Option is B
Solution and Explanation
Acidic strength in alcohols depends on the stability of the conjugate base (alkoxide ion). The more stable the alkoxide, the stronger the acid.
- (ii) is ethanol (primary) – least hindered, most acidic.
- (i) is isopropyl alcohol (secondary) – more hindered, less acidic.
- (iii) is tert-butyl alcohol (tertiary) – most hindered, least acidic.
Thus, the correct order is:
\[
\text{(ii)>(i)>(iii)}
\]
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