Match the LIST-I with LIST-II

Choose the correct answer from the options given below:
Matching Analysis:
- A: Sodium bicarbonate solution - Reacts with carboxylic acids (II) to produce effervescence (CO2)
- B: Neutral ferric chloride - Gives colored complex with phenolic -OH (III)
- C: Ceric ammonium nitrate - Red color with alcoholic -OH (IV)
- D: Alkaline KMnO4 - Decolorizes with double bonds (I)
Correct Mapping:
- A → II (Carboxylic acid)
- B → III (Phenolic -OH)
- C → IV (Alcoholic -OH)
- D → I (Double bond)
Which one of the following graphs accurately represents the plot of partial pressure of CS₂ vs its mole fraction in a mixture of acetone and CS₂ at constant temperature?

Consider the following two reactions A and B: 
The numerical value of [molar mass of $x$ + molar mass of $y$] is ___.
Consider the following reaction sequence: 
Given: Compound (x) has percentage composition \(76.6%\ \text{C}\), \(6.38%\ \text{H}\) and vapour density \(=47\). Compound (y) develops a characteristic colour with neutral \(\mathrm{FeCl_3}\) solution. Identify the {INCORRECT statement.}
Two circular discs of radius \(10\) cm each are joined at their centres by a rod, as shown in the figure. The length of the rod is \(30\) cm and its mass is \(600\) g. The mass of each disc is also \(600\) g. If the applied torque between the two discs is \(43\times10^{-7}\) dyne·cm, then the angular acceleration of the system about the given axis \(AB\) is ________ rad s\(^{-2}\).

Match the LIST-I with LIST-II for an isothermal process of an ideal gas system. 
Choose the correct answer from the options given below: