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JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
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A compound of molecular formula C8H8O2 reacts with acetophenone to form a single cross-aldol product in the presence of base. The same compound on reaction with conc. NaOH forms benzyl alcohol as one of the products. The structure of the compound is :
A
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 1
B
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 2
C
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 3
D
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 4
2
JEE Main 2017 (Offline)
MCQ (Single Correct Answer)
+4
-1
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The major product obtained in the following reaction is :

JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 204 English
A
JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 204 English Option 1
B
JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 204 English Option 2
C
JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 204 English Option 3
D
JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 204 English Option 4
3
JEE Main 2017 (Offline)
MCQ (Single Correct Answer)
+4
-1
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The correct sequence of reagents for the following conversion will be :

JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 205 English
A
CH3MgBr, H+/ CH3OH, [Ag(NH3)2]+OH-
B
[Ag(NH3)2]+OH-, CH3MgBr, H+/ CH3OH
C
[Ag(NH3)2]+OH-, H+/ CH3OH, CH3MgBr
D
CH3MgBr, [Ag(NH3)2]+OH-, H+/ CH3OH
4
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
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The correct statement about the synthesis of erythritol (C(CH2OH)4) used in the preparation of PETN is :
A
The synthesis requires four aldol condensations between methanol and ethanol.
B
The synthesis requires two aldol condensations and two Cannizzaro reactions.
C
The synthesis requires three aldol condensations and one Cannizzaro reaction.
D
Alpha hydrogens of ethanol and methanol are involved in this reaction.
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