1
JEE Main 2019 (Online) 12th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
In the following reaction :

Aldehyde + Alcohol   $$\buildrel {HCl} \over \longrightarrow $$  Acetal

Aldehyde                    Alcohol
HCHO tBuOH
CH3CHO MeOH

The best combination is
A
CH3CHO and MeOH
B
HCHO and MeOH
C
CH3CHO and tBuOH
D
HCHO and tBuOH
2
JEE Main 2019 (Online) 12th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
In the following reaction, products A and B are –

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 137 English
A
JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 137 English Option 1
B
JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 137 English Option 2
C
JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 137 English Option 3
D
JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 137 English Option 4
3
JEE Main 2019 (Online) 12th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English
can not be prepared by -
A
CH3CH2COCH3 + PhMgX
B
PhCOCH3 + CH3CH2MgX
C
PhCOCH2CH3 + CH3MgX
D
HCHO + PhCH(CH3)CH2MgX
4
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The major product obtained in the following reaction is :

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English
A
JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 1
B
JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 2
C
JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 3
D
JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 4
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