Introduction An annuity is a finance product sold by an insurance company. It is a written agreement duly signed and agreed upon between the insurance company and the individual. The individual pays a certain amount of money initially or over time to the insurance company. In return, the insurance company ... Read More

Introduction Ampere Prefixes are commonly used while studying electrical circuits. There are seven fundamental units i.e. metre(m), kilogram (Kg), second(sec), Ampere(A), Kelvin(K), mole(mol), and Candela (Cd). Among these basic units, Ampere(A) is used to denote the flow of current. It is also noted shortly as the amp. There are many ... Read More

Introduction Extraction of wool is the process to produce from the fleece or hairs of mammalian animals of which are mostly found in colder regions like yak, sheep, etc. The animals which have hairs on their bodies are known as mammals. The fleece (hairs) on the body of sheep is ... Read More

Introduction Examples of colloids are the combination of two substance containing minute particles mixed with other substances. The embedded particle is considered as dispersion medium and the other substance like liquid, gas, or solid is considered as dispersion phase. For example: Fog, here water is dispersion phase and gas ... Read More

Introduction Exothermic reaction is the chemical reaction basically characterized by showing release of energy in the form of heat or light. For example, when we rub matchstick on the matchstick box it releases light and heat. This reaction shows the energy release in both heat and light form. The degenerate ... Read More

Introduction Factors affecting rate of evaporation are temperature, surface area, speed of wind etc. Evaporation as the name suggests is a type of vaporization. It is defined as a process or phenomenon where the state of matter changes from liquid to gaseous state below at the boiling point. In the ... Read More

Introduction Experiments on properties of acids and bases are one of the most vital topics in chemistry. It is discussed that the sour chemicals usually turns blue litmus into red are called acids. In a similar fashion, bases that are bitter tasting convert red litmus into blue. And acids and ... Read More

Introduction Examples of bases with its properties are as follows − Bases have pH value more than 7. Aqueous solution of basic compounds undergoes ionization and can conduct electricity. On reacting base with acids can produce salts. The concentrated base or strong base is known as Caustic. If base ... Read More

Introduction $\mathrm{Fe_3O_4}$ (Iron oxide) is one of the easily synthesized compounds occurring in nature are iron oxides. The iron oxides are better known as magnetic oxides have been in use by humans for ages now. A very common example of magnetic oxides being used are the nanoparticles of iron oxide ... Read More

Introduction Fenton’s reaction was first discovered by H.J.H Fenton when he first observed the oxidative properties in various metals which could further improve the usage of already discarded, unstable, and poisonous hydrogen peroxide. This discovery in the chemical field not only explored the benefits of hydrogen peroxide but also attracted ... Read More