Common Chemical Compounds and Reactions

This is the correct option. Egg shells are made up of calcium carbonate.

This is the correct option as this is not a use of sodium hydroxide. Sodium hydroxide is not used for making solvents for drycleaning.

This is the correct option. Sodium carbonate is used to remove the permanent hardness of water.

This is the correct option. Bleaching powder is also called as the chloride of lime.

This is the correct option. Plaster of Paris is used in chemistry laboratories for sealing air-gaps in apparatus where air-tight arrangement is required.

Common salt's chemical name is Sodium chloride (NaCl). It is the most common salt found in seawater and is widely used for food seasoning and preservation. The name reflects its composition of sodium and chlorine ions.

Ammonium bicarbonate is a white, crystalline powder with a slight odour of ammonia .It is insoluble in acetone and alcohols. When reacted with acids, carbon dioxide is produced, while reactions with alkalis give ammonia. It is used in the food industry as a raising agent for flat baked goods, such as cookies and crackers.

Antimony trioxide is the inorganic compound with the formula Sb₂O₃. It is the most important commercial compound of antimony. It is found in nature as the minerals valentinite and senarmontite.It is an opacifying agent for glass, ceramics and enamels.

Beryllium bromide is a chemical compound with the formula BeBr₂. It is very hygroscopic and dissolves well in water.

It is a white solid that is crystalline but often appears as a fine powder. It has a slightly salty, alkaline taste. It is a component of the mineral natron and is found dissolved in many mineral springs.It is primarily used in cooking (baking) where it reacts with other components to release carbon dioxide, which causes dough to rise.

A borane is a chemical compound of boron and hydrogen. The boranes comprise a large group of compounds with the generic formulae of BxHy. These compounds do not occur in nature. Many of the boranes readily oxidise on contact with air, some violently.

It is commonly used as a test for sulfate ion. In industry, barium chloride is mainly used in the purification of brine solution in caustic chlorine plants and also in the manufacture of heat treatment salts, case hardening of steel, in the manufacture of pigments, and in the manufacture of other barium salts. BaCl₂ is also used in fireworks to give a bright green colour.

Calcium chlorate is the calcium salt of chloric acid with the chemical formula of Ca(ClO₃)₂. Like potassium chlorate, it is a strong oxidizer and can be used in pyrotechnic formulations. It is a crystalline substance. It may explode when heated strongly or in the presence of reducing agents, such as organic matter.

Carbon tetrachloride is the organic compound with the formula CCl₄. It was formerly widely used in fire extinguishers, as a precursor to refrigerants, and as a cleaning agent. It is a colourless liquid with a sweet smell that can be detected at low levels.

Chloroform is the organic compound with formula CHCl₃ . The colourless, sweet-smelling, dense liquid is a trihalomethane, and is considered somewhat hazardous. Several million tons are produced annually as a precursor to teflon and refrigerants.