Explanation

Coagulation is the process where a liquid changes into a semisolid or gel-like state.

It often occurs in biological and chemical systems, such as blood clotting or curd formation.

Explanation

Turpentine is commonly used as a solvent in the manufacture of paints and inks.

It helps to dissolve pigments and improves the consistency and drying of the paint.

Explanation

Smoke is an example of a solid dispersed in a gas, where tiny solid particles are suspended in air.

This type of mixture is a colloidal solution known as an aerosol.

Explanation

Natural rubber is made primarily of cis-1,4-polyisoprene, a polymer of the isoprene monomer.

It is harvested from the latex of rubber trees and processed into polyisoprene, which gives rubber its elasticity.

Explanation

A single chlorine atom from CFCs can destroy up to 100,000 ozone molecules before being deactivated.

This chain reaction is what makes chlorine so dangerous for the ozone layer.

Explanation

During lightning or electrical discharges, nitrogen (N₂) reacts with oxygen (O₂) to form nitric oxide (NO).

This is the first step in the natural nitrogen cycle involving atmospheric fixation.

Explanation

A chemical property describes a substance’s ability to undergo a change that alters its chemical identity.

Examples include flammability, reactivity with acids, or ability to rust.

Explanation

Combustion is a chemical process in which a fuel reacts with oxygen to produce carbon dioxide, water, and energy (usually in the form of heat or light).

It is an exothermic reaction.

It is commonly seen in burning fuels like wood, gas, or coal.

Explanation

Greenhouse Effect refers to the process where certain gases, like carbon dioxide and methane, trap heat from the sun in the Earth's atmosphere, leading to an increase in temperature.

It is a natural process, but human activities have intensified it, contributing to global warming.

Explanation

Soaps are alkaline.

It often contain basic substances like sodium hydroxide, which can irritate or burn the eyes.

These bases disrupt the eye's natural pH, causing a stinging or burning sensation.