Intensive properties are those that do not depend on the amount of substance, while extensive properties depend on the quantity of the substance.
The total number of intensive properties is:
\[ 4 \, \text{(Molar mass, Molar heat capacity, Molarity, and } E^\circ_{\text{cell}}). \]
The total number of intensive properties is 4.
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\(^{-2}\).

Method used for separation of mixture of products (B and C) obtained in the following reaction is: 