1
JEE Main 2021 (Online) 26th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
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2, 4-DNP test can be used to identify :
A
ether
B
amine
C
aldehyde
D
halogens
2
JEE Main 2021 (Online) 26th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
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JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English
Considering the above reaction, the major product among the following is :
A
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 1
B
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 2
C
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 3
D
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 4
3
JEE Main 2021 (Online) 26th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Identify A in the given chemical reaction.

JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English
A
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 1
B
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 2
C
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 3
D
JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 4
4
JEE Main 2021 (Online) 26th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
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The correct order of electron gain enthalpy is :
A
Te > Se > S > O
B
S > Se > Te > O
C
S > O > Se > Te
D
O > S > Se > Te
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