1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the end-product [D] formed when solution salicylate undergoes the following series of reactions

COMEDK 2024 Evening Shift Chemistry - Aldehyde and Ketone Question 2 English

A
COMEDK 2024 Evening Shift Chemistry - Aldehyde and Ketone Question 2 English Option 1
B
COMEDK 2024 Evening Shift Chemistry - Aldehyde and Ketone Question 2 English Option 2
C
COMEDK 2024 Evening Shift Chemistry - Aldehyde and Ketone Question 2 English Option 3
D
COMEDK 2024 Evening Shift Chemistry - Aldehyde and Ketone Question 2 English Option 4
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Given are the names of 4 compounds. Two of these compounds will not undergo Cannizzaro's reaction. Identify the two.

A. 2-Chlorobutanal

B. 2,2-Dimethylpropanal

C. Benzaldehyde

D. 2-Phenyl ethanol

A
A & D
B
D & C
C
C & B
D
A & B
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is/are the product/s formed when Benzaldehyde and Ethanal react in presence of dil. $$\mathrm{NaOH}$$ followed by heating the intermediate product formed?

A
2-Methylpent-2-enal & But-2-enal
B
3-Phenylprop-2-enal & But-2-enal
C
Only product is But-2-enal
D
Only product is 2-Phenylprop-2-enal
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following is the correct order of reagents to be used to convent [A] to [X] ?

COMEDK 2024 Evening Shift Chemistry - Aldehyde and Ketone Question 1 English

$$ \text { Reagents: } \mathrm{PCC}, \mathrm{PCl}_5, \mathrm{LiAlH}_4, \frac{\mathrm{KCN}}{\mathrm{H}_3 \mathrm{O}^{+}} $$

A
$$ \frac{K C N}{H_3 \mathrm{O}^{+}} \quad \mathrm{PCl}_5 \quad \mathrm{PCC} \quad \mathrm{LiAlH}_4 $$
B
$$ \mathrm{PCl}_5, \quad \frac{K C N}{H_3 \mathrm{O}^{+}} \quad \mathrm{LiAlH}_4 \quad \mathrm{PCC} $$
C
$$ \mathrm{LiAlH}_4, \frac{K C N}{H_3 \mathrm{O}^{+}} \quad \mathrm{PCl}_5 \quad \mathrm{PCC} $$
D
$$ \mathrm{PCC} \quad \mathrm{PCl}_5 \quad \frac{K C N}{\mathrm{H}_3 \mathrm{O}^{+}} \quad \mathrm{LiAlH}_4 $$
COMEDK Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12