Adsorption of gases on solid surfaces primarily occurs due to Van der Waals forces, which are weak intermolecular forces that allow gas molecules to adhere to the surface.

Colloidal solutions are formed by the dispersion of fine particles in a medium, which is the process of dispersion.

Gases are highly compressible due to large intermolecular spaces between particles.

Halogens have high electronegativity due to their high ionization energy, which allows them to attract electrons effectively.

The presence of d-electrons allows transition metals to exhibit variable oxidation states.

Gases can be compressed more than liquids or solids because they have large intermolecular spaces.

Boron is primarily used in the production of glass and ceramics.

Polyethylene is primarily used in packaging due to its flexibility and durability.

Polystyrene is widely used in packaging materials due to its lightweight and cushioning properties.

Sulfuric acid is primarily used as battery acid in lead-acid batteries.

Sodium has an atomic number of 11, and its outermost electron is in the 3rd shell, so n=3.

Sodium has the electronic configuration of 1s² 2s² 2p⁶ 3s¹, so the principal quantum number for the outermost electrons is 3.

The ground state of hydrogen corresponds to n = 1.

Number of kings = 4. Probability = 4/52 = 1/13.

Number of queens = 4. Probability = 4/52 = 1/13.

There are 2 outcomes: heads or tails. Probability of heads = 1/2.

Possible combinations for sum of 7 = (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6. Total outcomes = 36. Probability = 6/36 = 1/6.

The process of a solid turning directly into a gas is called sublimation.

The process of forming a polymer from monomers is called polymerization.

1-bromopropane reacts with sodium hydroxide in ethanol to form 1-propanol through a nucleophilic substitution reaction.

6 × 7 = 42.

8 × 7 = 56.

9 × 6 = 54.

9 × 7 = 63.

The products of electrolysis of water are hydrogen and oxygen.

The complete combustion of propane produces carbon dioxide (CO2) and water (H2O).

(1 + i)(1 - i) = 1^2 - i^2 = 1 - (-1) = 2.

(2 + 3i)(4 - i) = 8 - 2i + 12i - 3i^2 = 8 + 10i + 3 = 11 + 10i.

2-Propanol oxidizes to form Acetone, which is a ketone.

The oxidation of a primary alcohol first produces an aldehyde, which can further oxidize to a carboxylic acid.