Pumice stone is an example of -
gel
solid sol
foam
sol
Pumice stone is an example of a colloidal system known as a solid sol. In chemistry, a solid sol consists of solid particles dispersed in a solid medium. This type of colloid retains the shape of the solid while incorporating dispersed phase particles, often with unique characteristics such as porosity or lightness, as seen in pumice stones. Thus, the correct classification of pumice stone is a solid sol.
Match List I with List II:
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Calculate the boiling point of a solution containing 18 g of glucose (C\(_6\)H\(12\)O\(_6\)) in 100 g of water. (K₋b = 0.52°C·kg/mol, Molar mass of glucose = 180 g/mol)
Consider a water tank shown in the figure. It has one wall at \(x = L\) and can be taken to be very wide in the z direction. When filled with a liquid of surface tension \(S\) and density \( \rho \), the liquid surface makes angle \( \theta_0 \) (\( \theta_0 < < 1 \)) with the x-axis at \(x = L\). If \(y(x)\) is the height of the surface then the equation for \(y(x)\) is: (take \(g\) as the acceleration due to gravity)
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.
For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.
The solutions can be classified into three types:
On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types: