List of top Questions asked in JEE Main

Number of isomeric products formed by monochlorination Of \(2-methyl \) \(butane\) in presence of sunlight is
The ascending order of acidity of –OH group in the following compounds is: 
–OH group
Choose the correct answer from the options given below :
The molecular formula of second homologue in the homologous series of monocarboxylic acid is
Sugar which does not give reddish brown precipitate with Fehling‟s reagent is:
Which reagent on reacting with phenol gives salicylaldehyde?
What is the correct IUPAC name of the given compound?
correct IUPAC name of the given compound
m–chlorobenzaldehyde on treatment with 50\(\%\) KOH solution yields
Which of the following compounds will give silver mirror with ammoniacal silver nitrate?
(A) Formic acid
(B) Formaldehyde
(C) Benzaldehyde
(D) Acetone
Choose the correct answer from the options given below :
Identify compound (Z) in the following reaction sequence.
Reaction
Identify 'A' in the following reaction :
Reaction
Consider the given chemical reaction sequence :
Total sum of oxygen atoms in Product A and Product B are .........
Identify the major products A and B respectively in the following set of reactions.
pyridine
Identify the product (P) in the following reaction:
product
Consider the given reaction, identify the major product P.
Chemical Reaction

Number of compounds among the following which contain sulfur as a heteroatom is ___.
Compounds: Furan, Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine

$\textbf{Match List I with List II}$
$\begin{array}{|c|c|c|} \hline \text{List I (Bio Polymer)} & \text{List II (Monomer)} \\ \hline \text{A. Starch} & \text{I. nucleotide} \\ \text{B. Cellulose} & \text{II. } \alpha\text{-glucose} \\ \text{C. Nucleic acid} & \text{III. } \beta\text{-glucose} \\ \text{D. Protein} & \text{IV. } \alpha\text{-amino acid} \\ \hline \end{array}$
$\text{Choose the correct answer from the options given below :-}$
The total number of correct statements, regarding the nucleic acids is_________.
A. RNA is regarded as the reserve of genetic information.
B. DNA molecule self-duplicates during cell division.
C. DNA synthesizes proteins in the cell.
D. The message for the synthesis of particular proteins is present in DNA.
E. Identical DNA strands are transferred to daughter cells.
If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is:
Match List I with List II
\(\begin{array}{|c|c|c|} \hline \text{LIST-I} & & \text{LIST-II} \\ \hline \text{A. Glucose/NaHCO}_3/\Delta & & \text{I. Gluconic acid} \\ \text{B. Glucose/HNO}_3 & & \text{II. No reaction} \\ \text{C. Glucose/HI/} \Delta & & \text{III. n-hexane} \\ \text{D. Glucose/Bromine water} & & \text{IV. Saccharic acid} \\ \hline \end{array}\)
Choose the correct answer from the options given below:
The incorrect statement about Glucose is :
From the vitamins \( A, \, B_1, \, B_6, \, B_{12}, \, C, \, D, \, E, \, \text{and} \, K \), the number of vitamins that can be stored in our body is ______.
Which of the following is the correct structure of L-Glucose ?
Total number of essential amino acid among the given list of amino acids is _______.
Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline
The total number of carbon atoms present in tyrosine, an amino acid, is _______.
Vanillin compound obtained from vanilla beans, has total sum of oxygen atoms and \( \pi \) electrons is ______