What is the definition of an acid and a base?What is the Arrhenius definition of an acid and a base?What are acids?The Swedish chemist, Arrhenius proposed the following definition of an acid. An acid is a substance which ionises or dissociates in water …

Uses of Acids1. Hydrochloric Acid (HCl)Dilute hydrochloric acid is used in various industries that use heating applications. It is applied to remove deposits from the inside of the boilers.Hydrochloric acid is also used for cleaning sinks and sanitary wa…

Classification of AcidsDepending upon the elements present, acids may be classified as follows. (i)   Oxyacid : Acids that contain both hydrogen and oxygen are called oxyacids. For example, nitric acid (HNO3), sulphuric acid (H2SO4) and phosphoric acid (…

What is the definition of a base in chemistry?Bases Bases are substances that are soapy to touch and bitter in taste. Substances containing a base are called basic substances. Sodium hydroxide (NaOH) and calcium hydroxide [Ca(OH)2] are examples of bases …

General Properties of AcidsProperties of Acids Some of the characteristic properties of acids are: Acids are sour to taste and are corrosive in nature along with sour taste, acids also have the ability to corrode metals such as iron and aluminium. For t…

Preparation of AcidsThere are several methods for preparing acids. Some of them are discussed here.1. Synthetic method: In the synthetic method, acids are prepared by a direct combination of elements. For example, hydrogen and chlorine react together un…

What is the definition of an acid in chemistry?What is an acid according to chemistry?The term ‘acid’ has its origin in the Latin word acidus, meaning sour. In fact, anything that tastes sour contains an acid. For example, lemon juice, tomato, vinegar, e…

What are the Physical Changes of a SubstancePhysical changes Physical changes are the changes in which no new substances are formed. For example, the formation of ice from water kept in a freezer is a physical change because the ice when kept in the ope…

Methods Of Separation Of Substances Under Wet ConditionsSome solid particles are insoluble in water. For example chalk powder, dust particles, sand, and tiny pieces of straw are insoluble in water. To separate this type of particles generally we use the…

Methods Of Separation Of Substances Under Dry ConditionsDifferent methods are used for separating different substances that are mixed together such as handpicking, threshing, winnowing and sieving.ThreshingGrains or seeds of plants like rice and wheat s…