1
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
In Reimer - Tiemann reaction, phenol is converted into salicylaldehyde through an intermediate. The structure of intermediate is __________.
A
B
C
D
2
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Which among the following aldehydes is most reactive towards nucleophilic addition reactions?
A
B
C
D
3
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
DNA molecule contains 4 bases whose structure are shown below. One of the structures is not correct, identify the incorrect base structure.
A
B
C
D
4
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
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:
Paper analysis
Total Questions
Chemistry
30
Mathematics
30
Physics
30
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