Explanation

Explanation

Explanation

The Tyndall effect is the scattering of light by particles in a colloid or in very fine suspensions.

When light passes through a colloidal solution, the dispersed particles scatter the light in different directions, making the path of the light visible.

Explanation

The constant (often represented as 'k' or 'A') in Charles's Law is dependent on the amount of gas (number of moles) and the pressure.

It essentially represents the proportionality between volume and temperature when pressure is kept constant. 

Explanation

Calcium carbonate (CaCO₃) is insoluble in water due to its strong ionic lattice and low solubility product.

In contrast, salts like sodium and potassium compounds are generally highly soluble in water.

Explanation

The Latin word "fevere" means "to boil", referring to the bubbling appearance during fermentation.

This bubbling is due to the release of gases like carbon dioxide during the process.

Explanation

In a double displacement reaction, two compounds exchange ions to form two new compounds.

The reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) involves the exchange of ions to form sodium chloride (NaCl) and water (H₂O), making it a double displacement reaction.

Explanation

dsp2 type of hybridization is seen especially in the case of transition metal ions.

The orbitals involved in this type of hybridization are dx2−y2, s and two p orbitals

Explanation

Iodine heptafluoride (IF₇) has a pentagonal bipyramidal structure.

In this geometry, iodine is surrounded by seven fluorine atoms:

• five fluorines are arranged in a plane forming a pentagon,
• and the other two fluorines are positioned above and below this plane,
• forming the axial positions.

This arrangement minimizes electron pair repulsion around the iodine atom.

Explanation

In a reversible adiabatic process, there is no heat exchange with the surroundings, meaning the system is isolated in terms of heat.

Since entropy is a measure of:

• heat energy dispersal
• no heat is exchanged
• the entropy change in a reversible adiabatic process is zero.