Common Chemical Compounds and Reactions

NaOH is a strong base and it is used in many industries, mostly as a strong chemical base in the manufacture of textiles, drinking water and soaps. 

Correct answer. Inactivated Sendai virus, Polyethylene glycol and Ca²⁺ at alkaline pH are all protoplast fusion inducing agents.

Iodine sublimes and directly changes into gas when heated.

It is the chemical name of salt.

It is insoluble in water.

Silver bromide is a light-sensitive chemical used in traditional photographic films and papers to capture images. When exposed to light, it undergoes a chemical reaction that creates a latent image. Sodium chloride and aluminum hydroxide do not have the necessary light-sensitive properties for this application.

Baking soda is the common name for sodium bicarbonate, which has the chemical formula NaHCO3. Sodium carbonate (Na2CO3) is known as washing soda.

Both water and ammonia have fixed composition.

Air is a homogeneous mixture of many gases.

Both sodium and potassium belongs to the alkali metals and hence they have similar properties.

This option is correct because the barium is reacting with water to formed barium hydroxide. This is called baryta water.

This option is correct, because plaster of paris when heated above 200^oC is converted in to anhydrous calcium sulphate. This anhydrous is known as dead burnt. Because it does not set like plaster of paris when moistened with water.

This option is correct because the CaO (basic flux) which reacts with P₂O₅ to give calcium phosphate is called bone ash.

Sodium, Potassium, and Zinc are all chemical elements that are classified as metals. Calcium is also a metallic element, whereas Sulphur and Iodine are non-metals and water is a compound.