Identify P, Q, and R in the correct sequence of reactions shown below: a) b) c) d) e) Choose the correct answer from the options given below:
(A), (C), and (D) only
In the given sequence of reactions:
- **P** corresponds to the **starting compound**, which is the **amide derivative** formed from the reaction with acetic acid and aniline (option A).
- **Q** corresponds to **hydrazine** (N2H4) formed after the reaction with **HNO3 and H2SO4** (option C).
- **R** corresponds to the **final product**, which is an amide derivative formed after a further reaction step, similar to **P**, but with a different substituent (option D).
Thus, the correct sequence of reactions is: **(A), (C), (D)** (Option d).
Important Questions from Organic Compounds Containing Nitrogen
The correct increasing order of basic strength of amine is:
(A) C₆H₅NH₂ < NH₃ < C₆H₅CH₂NH₂ < C₂H₅NH₂ < (C₂H₅)₂NH
(B) NH₃ < C₆H₅NH₂ < C₆H₅CH₂NH₂ < C₂H₅NH₂ < (C₂H₅)₂NH
(C) C₆H₅CH₂NH₂ < C₆H₅NH₂ < NH₃ < C₂H₅NH₂ < (C₂H₅)₂NH
(D) C₂H₅NH₂ < (C₂H₅)₂NH < C₆H₅NH₂ < NH₃
(E) NH₃ < C₂H₅NH₂ < C₆H₅CH₂NH₂ < (C₂H₅)₂NH < C₆H₅NH₂
Choose the correct answer from the options given below:
In which of the following molecules carbon atom marked with asterisk (*) is a stereocentre or chiral centre?
Match List-I with List-II:
List-I List-II (A) Urease (I) Maltose (B) Maltase (II) Glucose and fructose (C) Invertase (III) NH₃ and CO₂ (D) Diastase (IV) Glucose Choose the correct answer from the options given below:
Phenol is manufactured from hydrocarbon, Cumene. Cumene is chemically:
t99.9% with respect to t90% for a first-order reaction is:
