Match the following plant product with their chemical class
(1) b-amyrin (P) Alkaloid secondary alcohol (2) Sqaulene (Q) Alkaloid, phenol (3) Morphine (R) Triterpene, secondary alcohol (4) Ephedrine (S) Asyclic triterpene, polyene
| (1) | b-amyrin | (P) | Alkaloid secondary alcohol |
| (2) | Sqaulene | (Q) | Alkaloid, phenol |
| (3) | Morphine | (R) | Triterpene, secondary alcohol |
| (4) | Ephedrine | (S) | Asyclic triterpene, polyene |
- 1-R, 2-S, 3-Q, 4-P
- 1-S, 2-Q, 3-P, 4-R
- 1-P, 2-S, 3-Q, 4-R
- 1-R, 2-S, 3-P, 4-Q
The Correct Option is A
Solution and Explanation
Top Questions on carbonyl compounds
Given below are the four isomeric compounds \(P, Q, R, S\):
\(P\): Aromatic compound containing an \(-\mathrm{OH}\) group
\(Q\): Aromatic compound containing an \(-\mathrm{CHO}\) group (aldehyde)
\(R\): Aromatic compound containing a ketone group
\(S\): Aromatic compound containing a ketone group Identify the correct statements from below:
[A.] \(Q, R\) and \(S\) will give precipitate with \(2,4\)-DNP.
[B.] \(P\) and \(Q\) will give positive Baeyer’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 Tollens’ reagent. Choose the correct option.- JEE Main - 2026
- Chemistry
- carbonyl compounds
- The statements that are incorrect about the nickel(II) complex of dimethylglyoxime are :
A. It is red in colour.
B. It has a high solubility in water at pH = 9.
C. The Ni ion has two unpaired d-electrons.
D. The N – Ni – N bond angle is almost close to 90°.
E. The complex contains four five-membered metallacycles (metal containing rings).
Choose the correct answer from the options given below :- JEE Main - 2026
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Match the LIST-I with LIST-II
Choose the correct answer from the options given below:- JEE Main - 2026
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- Which of the following is the correct order with respect to the property indicated?
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- C₆H₁₂O₃ gives positive iodoform test on hydrolysis with dil. Acid. The hydrolysis product formed gives Tollens’ and iodoform test both. Find structure of C₆H₁₂O₃.
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- Chemistry
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Questions Asked in GPAT exam
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(1) Schedule FF
(2) Schedule F3
(3) Schedule V
(4) Schedule Y
Descriptions:
(P) Standards of patent and proprietary medicines
(Q) Requirements and guidelines for clinical trials
(R) Standards for sterilized umbilical tapes
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- GPAT - 2025
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Match the following:
(P) Schedule H
(Q) Schedule G
(R) Schedule P
(S) Schedule F2
Descriptions:
(I) Life period of drugs
(II) Drugs used under RMP
(III) List of Prescription Drugs
(IV) Standards for surgical dressing
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