Match List-I with List-II: Choose the most appropriate answer from the options given below:List-I List-II (A) CH3COCH3 (I) NaCHO3 test (B) CH3COOH (II) Tollen’s test (C) 
(III) Iodoform test (D) 
(IV) FeCl3 test
(A) → (III), (B) → (I), (C) → (II), (D) → (IV)
To match the compounds with the correct tests:
- (A) refers to an aldehyde group (CHO), which gives a positive Iodoform test (Option III).
- (B) refers to a carboxylic acid group (COOH), which gives a positive NaCHO3 test (Option I).
- (C) refers to a phenyl aldehyde (C6H5CHO), which will give a positive Iodoform test (Option II).
- (D) refers to a phenolic alcohol group (-OH), which gives a positive FeCl3 test (Option IV).
Therefore, the correct matching is (A) → (III), (B) → (I), (C) → (II), (D) → (IV).
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:
