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‘\( x \)’ is the product which is obtained by the hydrolysis of prop-\( 1 \)-yne in the presence of mercuric sulphate under dilute acidic medium at \( 333 \, \text{K} \). ‘\( y \)’ is the product which is obtained by the reaction is ethane nitrile with methyl magnesium bromide in dry ether followed by hydrolysis. IUPAC name of product obtained from ‘\( x \)’ and ‘\( y \)’ in the presence of barium hydroxide followed by heating is:

Given below are the four isomeric compounds \( (P, Q, R, S) \).

Identify correct statements from below.
A. \( Q, R \) and \( S \) will give precipitate with \( 2,4\text{-DNP} \).
B. \( P \) and \( Q \) will give positive Bayer’s test.
C. \( Q \) and \( R \) will give sooty flame.
D. \( R \) and \( S \) will give yellow precipitate with \( I_2 / \mathrm{NaOH} \).
E. \( Q \) alone will deposit silver with Tollen’s reagent

Choose the correct option.

Grignard reagent \( \mathrm{RMgBr} \) (\( P \)) reacts with water and forms a gas (\( Q \)). One gram of \( Q \) occupies \( 1.4 \, \mathrm{dm^3} \) at STP. \( Q \) on reaction with dry ice in dry ether followed by \( \mathrm{H_3O^+} \) forms a compound (\( Z \)). \( 0.1 \) mole of (\( Z \)) will weigh ______ \( \mathrm{g} \). (Nearest integer)

Consider the following reaction of benzene.

In compound \( (Q) \), the percentage of oxygen is _____ \( \% \). \( \)(Nearest integer\( \))

An organic compound “\( x \)” where molar ratio of \( \mathrm{C} \), \( \mathrm{O} \) and \( \mathrm{H} \) are equal, on treatment with \( 50\% \) \( \mathrm{KOH} \) under reflux followed by acidification produced “\( y \)”. The most likely structure of “\( y \)” is:

[Molar mass of “\( x \)” is \( 58 \) g \( \mathrm{mol}^{-1} \)]

\( 'x' \) is the product which is obtained from propanenitrile and stannous chloride in the presence of hydrochloric acid followed by hydrolysis. \( 'y'\) is the product which is obtained from the but-2-ene by the ozonolysis followed by hydrolysis. From the following, which product is not obtained when one mole of \( 'x' \) and one mole of \( 'y' \) react with each other in the presence of alkali followed by heating?

Match List - I with List - II.

List – I	List – II
Reagents	Reaction Name (Involving aldehydes)
A. \( \mathrm{H_2, Pd{-}BaSO_4} \)	I. Etard Reaction
B. \( \mathrm{SnCl_2, HCl} \)	II. Rosenmund Reduction
C. \( \mathrm{CrO_2Cl_2, CS_2} \)	III. Gatterman - Koch Reaction
D. \( \mathrm{CO, HCl, \ Anhyd.\ AlCl_3} \)	IV. Stephen Reaction

Choose the correct answer from the options given below:

A molecule \( (X) \) with following structure under mild acidic condition is hydrolyzed to produce \( (Y) \) and \( (Z) \). Identify the correct statements about \( (Y) \) and \( (Z) \).

A. Both \( (Y) \) and \( (Z) \) have same molar mass.

B. \( (Y) \) and \( (Z) \) can be distinguished from each other by \( \mathrm{NaHCO_3} \).

C. \( (Y) \) and \( (Z) \) react with \( \mathrm{HCN} \) with same rates.

D. \( (Y) \) and \( (Z) \) undergo addition reaction with \( 2,4\text{-DNP} \).

Choose the correct answer from the options given below:

The unsaturated ether on acidic hydrolysis produces carbonyl compounds as shown below:

Based on this, predict the solution/reagent that will help to distinguish "P" and "Q" obtained in the following reaction:

10.

Given below are two statements:
Statement I: Cross aldol condensation between two different aldehydes will always produce four different products.
Statement II: When semicarbazide reacts with a mixture of benzaldehyde and acetophenone under optimum pH, it forms a condensation product with acetophenone only.
In the light of the above statements, choose the correct answer from the options given below:

11.

"P" is a hydrocarbon of molecular formula :- \( \mathrm{C_8H_{14}} \). On ozonolysis, "P" forms "Q". "Q" on treatment with alkali under reflux condition produces "R", which on treatment with \( \mathrm{I_2/NaOH} \) gives a yellow precipitate. Acidification of the solution gives "S". The structure of "S" is given below:-

The correct structure of "P" is

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JEE Main 2026 5th April Morning Shift

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