List I (Reagents Used) | List II (Compound with Functional group detected) | ||
| A | Alkaline solution of copper sulphate and sodium citrate | I | ![]() |
| B | Neutral FeCl3 solution | II | ![]() |
| C | Alkaline chloroform solution | III | ![]() |
| D | Potassium iodide and sodium hypochlorite | IV | ![]() |
Choose the correct answer from the options given below :
A: Alkaline solution of copper sulphate and sodium citrate detects aldehydes. The aldehyde reacts to form a reddish-brown precipitate of Cu$_2$O.
B: Neutral FeCl$_3$ solution is used for detecting phenolic groups. Phenols give a characteristic color (violet or blue).
C: Alkaline chloroform solution (Haloform test) detects the presence of a methyl ketone or a methyl group adjacent to a hydroxyl group.
D: Potassium iodide and sodium hypochlorite (Iodoform test) confirms alcohol groups (-CH$_3$OH). \end{itemize}
Match List-I with List-II:
A point particle of charge \( Q \) is located at \( P \) along the axis of an electric dipole 1 at a distance \( r \) as shown in the figure. The point \( P \) is also on the equatorial plane of a second electric dipole 2 at a distance \( r \). The dipoles are made of opposite charge \( q \) separated by a distance \( 2a \). For the charge particle at \( P \) not to experience any net force, which of the following correctly describes the situation?


