Question:
The major product \(Y\) in the following reaction is:
The major product \(Y\) in the following reaction is:
Show Hint
In excess alcohol + acid, hemiacetal converts to stable acetal.
Updated On: Apr 14, 2026
- hemiacetal
- acetal
- an ether
- an ester
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
•Aldehyde/ketone + alcohol (in acidic medium)
•First forms hemiacetal, then acetal
Step 1:
•Given \(ROH_2OH\) (diol) + \(H^+\) (anhydrous)
Step 2:
•Formation proceeds beyond hemiacetal
•Final stable product = acetal Final: \[ \Rightarrow \text{Acetal is formed} \]
•Aldehyde/ketone + alcohol (in acidic medium)
•First forms hemiacetal, then acetal
Step 1:
•Given \(ROH_2OH\) (diol) + \(H^+\) (anhydrous)
Step 2:
•Formation proceeds beyond hemiacetal
•Final stable product = acetal Final: \[ \Rightarrow \text{Acetal is formed} \]
Was this answer helpful?
0
0
Top MET Chemistry Questions
- In the following sequence of reactions, \[ CH_3Br \xrightarrow{KCN} X \xrightarrow{H_3O^+} Y \xrightarrow{LiAlH_4 / \text{ether}} Z \] The final product \(Z\) is:
- MET - 2024
- Chemistry
- Organic Reactions
- The oxidation state of Cr in \([Cr(H_2O)_6]Cl_3\), \([Cr(C_6H_6)_2]\), \(K_2[Cr(CN)_2(O)_2(O_2)(NH_3)]\) respectively are:
- MET - 2024
- Chemistry
- coordination compounds
- Consider the following amino acids:
•[(i)] Lysine
•[(ii)] Glutamine
•[(iii)] Arginine
•[(iv)] Leucine
•[(v)] Serine
•[(vi)] Proline
•[(vii)] Valine Which of the given amino acids are basic in nature?- MET - 2024
- Chemistry
- Chemistry in Everyday Life
- Which of the following ion is colourless inspite of the presence of unpaired electrons?
- MET - 2024
- Chemistry
- The Lanthanoids
- For a first order reaction, time required for 99% completion is \(x\) times the time required for 90% completion. Find \(x\).
- MET - 2024
- Chemistry
- Half life
View More Questions
Top MET carbonyl compounds Questions
- Which of the following reaction does not form benzaldehyde as product?
- MET - 2023
- Chemistry
- carbonyl compounds
- The reagent which distinguishes formic acid and acetic acid is
- MET - 2020
- Chemistry
- carbonyl compounds
- Match List-I with List-II and select the correct answer from the given codes. \[ \begin{array}{|c|c|c|} \hline List-I (Reaction) & & List-II (Reagent/Catalyst) \hline A.\ \text{Cannizzaro reaction} & & 1.\ SnCl_2/HCl B.\ \text{Stephen's reaction} & & 2.\ NaOH C.\ \text{Clemmensen reduction} & & 3.\ Zn/Hg - conc.\ HCl D.\ \text{Rosenmund's method} & & 4.\ Pd/BaSO_4,\ \text{boiling xylene} \hline \end{array} \] Codes: {c c c c c} & A & B & C & D
- MET - 2020
- Chemistry
- carbonyl compounds
- The most susceptible to nucleophilic attack at the carbonyl group among the given compounds is
- MET - 2016
- Chemistry
- carbonyl compounds
- Two luminous point sources separated by a certain distance are at 10 km from an observer. If the aperture of his eye is $2.5\times10^{-3}$ m and the wavelength of light used is 500 nm, the distance of separation between the point sources just seen to be resolved is
- MET - 2009
- Chemistry
- carbonyl compounds
View More Questions
Top MET Questions
- Let \( f:\mathbb{N} \to \mathbb{N} \) be defined as \[ f(n)= \begin{cases} \frac{n+1}{2}, & \text{if } n \text{ is odd} \\ \frac{n}{2}, & \text{if } n \text{ is even} \end{cases} \] Then \( f \) is:
- MET - 2024
- types of functions
- Given vectors \(\vec{a}, \vec{b}, \vec{c}\) are non-collinear and \((\vec{a}+\vec{b})\) is collinear with \((\vec{b}+\vec{c})\) which is collinear with \(\vec{a}\), and \(|\vec{a}|=|\vec{b}|=|\vec{c}|=\sqrt{2}\), find \(|\vec{a}+\vec{b}+\vec{c}|\).
- MET - 2024
- Addition of Vectors
- Given \(\frac{dy}{dx} + 2y\tan x = \sin x\), \(y=0\) at \(x=\frac{\pi}{3}\). If maximum value of \(y\) is \(1/k\), find \(k\).
- MET - 2024
- Differential equations
- If \(x = \sin(2\tan^{-1}2)\), \(y = \sin\left(\frac{1}{2}\tan^{-1}\frac{4}{3}\right)\), then:
- MET - 2024
- Properties of Inverse Trigonometric Functions
- A real differentiable function \(f\) satisfies \(f(x)+f(y)+2xy=f(x+y)\). Given \(f''(0)=0\), then \[ \int_0^{\pi/2} f(\sin x)\,dx = \]
- MET - 2024
- Definite Integral
View More Questions