Chemistry Online Quiz

An emulsion is a colloid of a liquid in a liquid. It is a mixture of two or more liquids that do not normally mix together.

The main gases responsible for the greenhouse effect include water vapor, carbon dioxide, methane, nitrous oxide, and water vapor (which all occur naturally), and fluorinated gases (which are synthetic) chlorofluorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, bromofluorocarbons (halons), perfluorcarbons, nitrogen trifluoride, and sulphur hexafluoride.

Curie point, also called Curie Temperature (T_C) is the temperature at which certain magnetic materials lose their magnetic properties.

Amorphous silica and Carbon black are used as fillers in the tyre of rubber. Their presence in rubber is essential to achieve longer‐wearing products, increased tyre strength and longevity.

Iodine is obtained from the Laminaria Digitata algae. Laminaria Digitata is a large brown alga in the family Laminariaceae, also known by the common name oarweed. It is found in the sublittoral zone of the northern Atlantic Ocean.

Milk of magnesia is also known as magnesium hydroxide. It is an inorganic compound with the chemical formula Mg(OH)₂. It occurs in nature as the mineral brucite.

The amount of chlorine available in water after disinfection is called as residual chlorine. Typically chlorine doses to final treated waters are in the range 0.2–2.0 mg/l of free chlorine to give a residual of about 0.02–0.3 mg/l at the consumer's tap.

Commercially, sodium bicarbonate (NaHCO₃) is known as Baking soda. It is a salt composed of a sodium cation and a bicarbonate anion. Baking soda is a leavening agent used in baked goods like cakes, muffins, and cookies.

Seawater can be purified by the process of distillation. Distillation is a phase separation method whereby saline water is heated to produce water vapor, which is then condensed to produce fresh water.

Soap is formed by mixing fats or oils with strong bases, such as sodium hydroxide. Sodium hydroxide is also called lye. Any skin or hair cleansing product made without sodium hydroxide is not soap, it is detergent. This process yields soap as a product and glycerol as a byproduct.