1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The order of stability of the following tautomeric compounds is

NEET 2013 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 57 English
A
II > I > III
B
II > III > I
C
I > II > III
D
III > II > I
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Reaction by which benzaldehyde cannot be prepared
A
NEET 2013 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 59 English Option 1
B
NEET 2013 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 59 English Option 2
C
NEET 2013 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 59 English Option 3
D
NEET 2013 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 59 English Option 4
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Consider the reaction :
RCHO + NH2NH2 $$ \to $$ RCH $$=$$ N $$-$$ NH2

What sort of reaction is it?
A
Electrophilic addition-elimination reaction
B
Free radical addition-elimination reaction
C
Electrophilic substitution-elimination reaction
D
Nucleophilic addition-elimination reaction
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Consider the following reaction

AIPMT 2012 Mains Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 55 English
The product A is
A
C6H5CHO
B
C6H5OH
C
C6H5COCH3
D
C6H5Cl
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