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Identify the structure of the final product \((\mathrm{D})\) in the following sequence of the reactions:

Total number of \( \mathrm{sp^2} \) hybridized carbon atoms in product \( \mathrm{D} \) is ________.

Which among the following react with Hinsberg's reagent?

Choose the correct answer from options given below:

A compound ‘X’ absorbs \( 2 \) moles of hydrogen and ‘X’ upon oxidation with \( \mathrm{KMnO_4/H^+} \) gives \(\text{CH}_3-\underset{\overset{\parallel}{\text{O}}}{\text{C}}-\text{CH}_3 , \text{CH}_3-\underset{\overset{\parallel}{\text{O}}}{\text{C}}-\text{O}-\text{H}\) and \(\text{CH}_3-\underset{\overset{\parallel}{\text{O}}}{\text{C}}-\text{CH}_2\text{CH}_2-\underset{\overset{\parallel}{\text{O}}}{\text{C}}-\text{O}-\text{H}\)
The total number of \( \sigma \) bonds present in the compound ‘X’ is ________.

\( X \) g of nitrobenzene on nitration gave \( 4.2 \, \text{g} \) of m-dinitrobenzene.
\( X = \) __________ g. (nearest integer)
[Given: molar mass (in \( \text{g mol}^{-1} \)) C : \( 12 \), H : \( 1 \), O : \( 16 \), N : \( 14 \)]

Isomeric hydrocarbons \( \rightarrow \) negative Baeyer’s test
(Molecular formula \( \mathrm{C_9H_{12}} \))
The total number of isomers from above with four different non-aliphatic substitution sites is _______.

Predict the major product of the following reaction sequence:-

The major product of the following reaction is:

Given below are two statements:
Statement-I: One mole of propyne reacts with excess of sodium to liberate half a mole of \( \mathrm{H_2} \) gas.
Statement-II: Four of propyne reacts with \( \mathrm{NaNH_2} \) to liberate \( \mathrm{NH_3} \) gas which occupies \( 224 \, \mathrm{mL} \) at STP.
In the light of the above statements, choose the most appropriate answer from the options given below:

Benzene is treated with oleum to produce compound \( (X) \) which when further heated with molten sodium hydroxide followed by acidification produces compound \( (Y) \). The compound \( Y \) is treated with zinc metal to produce compound \( (Z) \). Identify the structure of compound \( (Z) \) from the following option.

Choose the correct set of reagents for the following conversion.

Given below are two statements:
Statement (I): Neopentane forms only one monosubstituted derivative.
Statement (II): Melting point of neopentane is higher than \( n \)-pentane.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which compound would give \( 3 \)-methyl-\( 6 \)-oxoheptanal upon ozonolysis?

Given below are two statements:
Statement I: Ozonolysis followed by treatment with \( \mathrm{Zn}, \mathrm{H_2O} \) of cis-\( 2 \)-butene gives ethanal.
Statement II: The product obtained by ozonolysis followed by treatment with \( \mathrm{Zn}, \mathrm{H_2O} \) of \( 3,6 \)-dimethyloct-\( 4 \)-ene has no chiral carbon atom.
In the light of the above statements, choose the correct answer from the options given below.

The number of optically active products obtained from the complete ozonolysis of the given compound is:

Identify product \( [A] \), \( [B] \) and \( [C] \) in the following reaction sequence.
\( \text{CH}_3-\text{C} \equiv \text{CH} \xrightarrow[\text{H}_2]{\text{Pd/C}} [\text{A}] \xrightarrow[(\text{ii})\,\text{Zn, H}_2\text{O}]{(\text{i})\,\text{O}_3} [\text{B}] + [\text{C}] \)

The total number of structural isomers possible for the substituted benzene derivatives with the molecular formula \( C_9H_{12} \) is __________.

Following are the four molecules “P”, “Q”, “R” and “S”. Which one among the four molecules will react with \( \mathrm{H{-}Br_{(aq)}} \) at the fastest rate?

The total number of compounds from below when treated with hot \( KMnO_4 \) giving benzoic acid is:

Match List-I with List-II.

Choose the correct answer from the options given below:

Consider the above sequence of reactions. \( 151 \, \text{g} \) of \( 2 \)-bromopentane is made to react. Yield of major product \( P \) is \( 80\% \) whereas \( Q \) is \( 100\% \). Mass of product \( Q \) obtained is __________ \( \text{g} \).
(Given molar mass in \( \text{g mol}^{-1} \) \( \text{H}:1 \), \( \text{C}:12 \), \( \text{O}:16 \), \( \text{Br}:80 \))

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JEE Main 2025 3rd April Evening Shift

\( X \) g of nitrobenzene on nitration gave \( 4.2 \, \text{g} \) of m-dinitrobenzene.
\( X = \) __________ g. (nearest integer)
[Given: molar mass (in \( \text{g mol}^{-1} \)) C : \( 12 \), H : \( 1 \), O : \( 16 \), N : \( 14 \)]