1
JEE Main 2021 (Online) 26th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The major products formed in the following reaction sequence A and B are :

JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 95 English
A
JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 95 English Option 1
B
JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 95 English Option 2
C
JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 95 English Option 3
D
JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 95 English Option 4
2
JEE Main 2021 (Online) 26th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is :
A
Br2/AlBr3, HNO3/H2SO4, Mg/ether, CO2, H3O+
B
Br2/AlBr3, NaCN, H3O+, HNO3/H2SO4
C
Br2/AlBr3, HNO3/H2SO4, NaCN, H3O+
D
HNO3/H2SO4, Br2/AlBr3, Mg/ether, CO2, H3O+
3
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following compounds will give orange precipitate when treated with 2, 4-dinitrophenyl hydrazine?
A
JEE Main 2021 (Online) 27th July Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 97 English Option 1
B
JEE Main 2021 (Online) 27th July Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 97 English Option 2
C
JEE Main 2021 (Online) 27th July Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 97 English Option 3
D
JEE Main 2021 (Online) 27th July Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 97 English Option 4
4
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 98 English
Maleic anhydride can prepared by :
A
Heating trans-but-2-enedioic acid
B
Heating cis-but-2-enedioic acid
C
Treating cis-but-2-enedioic acid with alcohol and acid
D
Treating trans-but-2-enedioic acid with alcohol and acid
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