Question:
Identify the major product formed from the following reaction:
Identify the major product formed from the following reaction:
Show Hint
Aldol reaction: aldehyde + base → \(\beta\)-hydroxy aldehyde/ketone; dehydration gives \(\alpha,\beta\)-unsaturated carbonyl.
Updated On: Jul 18, 2026
- 1
- 2
- 3
- 4
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Recognize reaction type.
Aldehyde in presence of Ba(OH)\(_2\) and heat undergoes aldol condensation.
Step 2: Formation of enolate.
Ba(OH)\(_2\) abstracts alpha hydrogen to form enolate ion.
Step 3: Nucleophilic attack.
Enolate attacks carbonyl carbon of another aldehyde molecule forming \(\beta\)-hydroxy aldehyde or ketone (aldol).
Step 4: Heat effect.
Moderate heating favors formation of \(\beta\)-hydroxy ketone. Further heating may dehydrate to \(\alpha,\beta\)-unsaturated ketone.
Step 5: Identify major product.
If only mild heating, \(\beta\)-hydroxy ketone is major.
Step 6: Final conclusion.
\[ \boxed{\beta\text{-hydroxy ketone}} \]
Aldehyde in presence of Ba(OH)\(_2\) and heat undergoes aldol condensation.
Step 2: Formation of enolate.
Ba(OH)\(_2\) abstracts alpha hydrogen to form enolate ion.
Step 3: Nucleophilic attack.
Enolate attacks carbonyl carbon of another aldehyde molecule forming \(\beta\)-hydroxy aldehyde or ketone (aldol).
Step 4: Heat effect.
Moderate heating favors formation of \(\beta\)-hydroxy ketone. Further heating may dehydrate to \(\alpha,\beta\)-unsaturated ketone.
Step 5: Identify major product.
If only mild heating, \(\beta\)-hydroxy ketone is major.
Step 6: Final conclusion.
\[ \boxed{\beta\text{-hydroxy ketone}} \]
Was this answer helpful?
0
0
Top AP EAPCET Chemistry Questions
- The four quantum numbers of the valence electron of potassium are :
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
- In which of the following the election gain enthalpy of elements is correctly arranged?
- The radii of $ \text{F,}{{\text{F}}^{-}}\text{O} $ and $ {{\text{O}}^{2-}} $ are in the order
- Which of the following has the highest first ionization potential?
View More Questions
Top AP EAPCET Aldehydes And Ketones Questions
- Arrange the following in increasing order of their reactivity for nucleophilic addition reaction:
- Identify the correct trend of acidic strength for the given alcohols:
- An aryl carboxylic acid on treatment with sodium hydrogen carbonate liberates a gaseous molecule. Identify the gas molecule liberated.
- The reaction of an aldehyde with Tollens' reagent gives
- In which of the following reactions mesityl oxide is formed?
View More Questions
Top AP EAPCET Questions
- A body is projected from the ground at an angle of $\tan^{-1} \left( \frac{8}{7}\right)$ with the horizontal. The ratio of the maximum height attained by it to its range is
- The four quantum numbers of the valence electron of potassium are :
- A lens forms real and virtual images of an object, when the object is at $u_{1}$ and $u_{2}$ distances respectively. If the size of the virtual image is double that of the real image, then the focal length of the lens is (take, the magnification of the real image as $m$ )
- Two spheres $P$ and $Q$, each of mass $200\, g$ are attached to a string of length one metre as shown in the figure. The string and the spheres are then whirled in a horizontal circle about $O$ at a constant angular speed. The ratio of the tension in the string between $P$ and $Q$ to that of between $P$ and $O$ is $(P$ is at mid-point of the line joining $O$ and $Q$ )
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
View More Questions