An organic compound (A) undergoes the following reactions:
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- Structure 1
- Structure 2
- Structure 3
- Structure 4
The Correct Option is A
Solution and Explanation
Step 2: Catalytic hydrogenation of naphthalene with \( \mathrm{H_2/Pt} \) partially reduces one ring to form tetralin (tetrahydronaphthalene).
Step 3: Among the given options, structure (1) corresponds to naphthalene, which satisfies both reactions.
Top Questions on Organic Chemistry
- An organic compound (A) on catalytic hydrogenation with \( \mathrm{H_2/Pt} \) gives tetralin, and on oxidation with hot alkaline \( \mathrm{KMnO_4} \) followed by acidification gives phthalic acid. Identify compound (A).
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The IUPAC name of the following compound is:
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Given below are two statements:
Statement I: Experimentally determined oxygen-oxygen bond lengths in the \( O_2 \) are found to be the same and the bond length is greater than that of a \( O=O \) (double bond) but less than that of a single \( O-O \) bond.
Statement II: The strong lone pair-lone pair repulsion between oxygen atoms is solely responsible for the fact that the bond length in ozone is smaller than that of a double bond \( O=O \) but more than that of a single bond \( O-O \).
In light of the above statements, choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
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Given below are two statements:
Statement I:
will undergo alkaline hydrolysis at a faster rate than 
Statement II:
In
intramolecular substitution takes place first by involving lone pair of electrons on nitrogen.
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- Chemistry
- Organic Chemistry
- Sulfa drugs are derivatives of:
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Given below are two statements:
Statement I: Arginine and Tryptophan are essential amino acids.
Statement II: Glycine does not have any chiral carbon.
In the light of the above statements, which is the correct option?- JEE Main - 2026
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- An \( \alpha \)-particle having kinetic energy \(7.7\,\text{MeV}\) is approaching a fixed gold nucleus (atomic number \(Z = 79\)). Find the distance of closest approach.
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- If \( O \) is the vertex of the parabola \( x^2 = 4y \), \( Q \) is a point on the parabola. If \( C \) is the locus of a point which divides \( OQ \) in the ratio \( 2:3 \), then the equation of the chord of \( C \) which is bisected at the point \( (1,2) \) is:
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- If \( a_1, a_2, a_3, \ldots \) are in increasing geometric progression such that \[ a_1 + a_3 + a_5 = 21, a_1 a_3 a_5 = 64, \] then \( a_1 + a_2 + a_3 \) is:
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- Benzene undergoes the following sequence of reactions:
