Chapter_pending — JEE Advanced PYQs

Match the major products obtained in the reactions given in List-I with the corresponding structures in List-II and choose the correct option.
| (P) | ![](https://bejtblexbccyzlkrwwoz.supabase.co/storage/v1/object/public/question-imag …

The reaction sequence given below is carried out with 16 moles of X. The yield of the major product in each step is given below the product in parentheses. The amount (in grams) of $\mathbf{S}$ produced is ____.

Use: Atomic mass (in amu): …

Monocyclic compounds P, Q, R and S are the major products formed in the reaction sequences given below.

The product having the highest number of unsaturated carbon atom(s) is-

List-I contains various reaction sequences and List-II contains the possible products. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.

List-I
(P) (see reaction scheme)
(Q) (see reaction scheme)
(R) (see reaction scheme)
(S) (see re …

In the following reaction sequences, the major product $\mathbf{Q}$ is:

Consider the following reaction scheme and choose the correct option(s) for the major products Q, R and S.

(see reaction scheme)

The weight percentage of hydrogen in $\mathbf{Q}$, formed in the following reaction sequence, is ____.

[Given : Atomic mass of $\mathrm{H}=1,\mathrm{C}=12,\mathrm{N}=14,\mathrm{O}=16,\mathrm{S}=32,\mathrm{Cl}=35$ ]

The number of -${\mathrm{CH}}_2$- (methylene) groups in the product formed from the following reaction sequence is ____.

For the following reaction scheme, percentage yields are given along the arrow:

$\mathbf{x}$ g and $\mathbf{y}$ g are mass of $\mathbf{R}$ and $\mathbf{U}$, respectively.
(Use: Molar mass (in ${\mathrm{g}\mathrm{mol}}^{-1}$) of H, C and O as 1, 12 and 16, respectively)

The value of …

In the reaction scheme shown below Q, R and S are the major products.

The correct structure of

Choose the correct option(s) for the following reaction sequence

Consider Q, R and S as major products

Total number of hydroxyl groups present in a molecule of the major product P is ____

Answer the following by appropriately matching the lists based on the information given in the paragraph

List-I includes starting materials and reagents of selected chemical reactions. List-II gives structures of compounds that may be formed as intermediate products and/or final …

In the following reaction sequence, the correct structure(s) of X is (are)

LIST-I contains reactions and LIST-II contains major products.
| S. (see structure) | 4. (see structure) | …

The major product of the following reaction sequence is

The number of hydroxyl group(s) in Q is

Among the following, the number of reaction(s) that produce(s) benzaldehyde is

I.

II.

III.

IV.

In the following reactions, the product S is

In the reaction shown below, the major product(s) formed is/are

The major product in the following reaction is

Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is

Which of the following molecules, in pure form, is (are) unstable at room temperature ?

(A) (see structure)
(B) (see structure)
(C) (see structure)
(D) (see structure)