1
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In Reimer - Tiemann reaction, phenol is converted into salicylaldehyde through an intermediate. The structure of intermediate is __________.

A
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 8 English Option 1
B
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 8 English Option 2
C
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 8 English Option 3
D
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 8 English Option 4
2
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which among the following aldehydes is most reactive towards nucleophilic addition reactions?

A
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 27 English Option 1
B
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 27 English Option 2
C
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 27 English Option 3
D
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 27 English Option 4
3
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

DNA molecule contains 4 bases whose structure are shown below. One of the structures is not correct, identify the incorrect base structure.

A
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Biomolecules Question 21 English Option 1
B
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Biomolecules Question 21 English Option 2
C
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Biomolecules Question 21 English Option 3
D
JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Biomolecules Question 21 English Option 4
4
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
(Hybridization)
LIST II
(Orientation in Shape)
A. sp$$^3$$ I. Trigonal bipyramidal
B. dsp$$^2$$ II. Octahedral
C. sp$$^3$$d III. Tetrahedral
D. sp$$^3$$d$$^2$$ IV. Square planar

Choose the correct answer from the options given below:

A
A-III, B-I, C-IV, D-II
B
A-III, B-IV, C-I, D-II
C
A-IV, B-III, C-I, D-II
D
A-II, B-I, C-IV, D-III
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