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  • Electro Chemistry: Concept and its significance

    The Electrochemistry is that branch of chemistry under which those chemical reactions are studied which occurs through passing the electric current. It is also examines or analyse the phenomena that resulting from combined chemical and electrical effects. The electrolysis is a phenomenon of electro chemistry. In this chemistry, substances are indentified on the basis of good or bad conductor electricity when they are in liquefied state. Electrolyte and non- electrolyte are two types substance (compound) identified in electro chemistry.

    Feb 18, 2016
  • Nutrition in Animals

    Nutrition is the process of obtaining food and then using it for obtaining energy, growth and repair of the body. Animals are divided in to three groups on the basis of their food habits Herbivores, Carnivores and Omnivores. There are five main processes concerned with the use of food by animals these are: Ingestion, Digestion, Absorption, Assimilation and Egestion.

    Feb 18, 2016
  • Resistance of a Conductor

    Resistance is the hindrance to the flow of electric charge. The obstruction posed in the way of current carrying particles by fixed particles creates resistance in an electric circuit. The measurement of the electric current in an electric circuit therefore, depends on two factors primarily i.e. Potential Difference across the ends of the conductor and Resistance of the conductor. The relationship between current and potential difference is also explained by Ohm’s Law.

    Feb 17, 2016
  • Refraction of Light

    Refraction of light takes place when light travels from one medium to another. It takes place at the boundary between the two mediums. Also, we know that speed of light is different in different mediums. So, it occurs due to the change in speed of light on going from one medium to another.

    Feb 16, 2016
  • Use of Chemical Compound

    A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together in a defined spatial arrangement by chemical bonds. Chemical compounds can be molecular compounds held together by covalent bonds, salts held together by ionic bonds, inter-metallic compounds held together by metallic bonds, or complexes held together by coordinate covalent bonds.

    Feb 15, 2016
  • The Concept of Metallurgy and Metal Engineering

    Metallurgy is a process of extracting metal through various processes from their respective ores that directly or indirectly influence the physical and chemical activities involve in the production of metals. It is that part of science that studies the physical and chemical behaviour of metallic elements, their inter-metallic compounds, and their mixtures. It is also called the technology of metals: the way in which science is applied to the production of metals, and the engineering of metal components for usage in products for consumers and manufacturers.

    Feb 15, 2016
  • Reflection of light from Spherical Mirrors

    A spherical mirror is that mirror whose reflecting surface is the part of a hollow sphere of glass. Spherical mirrors are of two types: concave mirrors and convex mirrors. In a concave mirror reflection of light takes place in the bent in surface or concave surface. In a convex mirror the reflection of light takes place at the bulging-out surface or convex surface.

    Feb 12, 2016
  • Reflection of Light

    Light is a form of energy which enables us to see objects and the straight line along which it travels is called ray of light. Reflection of Light is the process of sending back the light rays which falls on the surface of an object. The image formed due to reflection of an object on a plane mirror is at different places.

    Feb 12, 2016
  • Radioactivity

    The phenomena of self disintegration by emitting certain invisible rays by the naturally occurring substances, elements and its compounds is called radioactivity. This invisible rays emancipating from the radioactive substances are called radioactive rays and also it can only occurs due to instability of the atoms. The phenomenon of radioactivity was discovered by A.H Becquerel in 1886 purely by accident. Later Pierre and Madam Curie showed similar phenomenon in other metals like plutonium, Francium and Radium.

    Feb 12, 2016
  • Matter and its states

    Matter is anything which has mass, occupies space and can be felt by our one or more sense organs. For example- Air and Water; Hydrogen and Oxygen; Sugar and Sand; Silver and Steel; Iron and Wood; Ice and Alcohol; Milk and Oil; Carbon dioxide and Steam; Carbon and Sulphur; Rocks and Minerals are all different kinds of matter, because all of them has mass, volume and occupy space.

    Feb 12, 2016
  • How worthless mineral or earthy substance extracted from ore?

    Concentration or Dressing or Benefaction is the process of removal of the gangue from the Ore. There are various methods of concentration but these methods are chosen on basis of the properties of the ore. There are mainly four types of method for Ore Concentration or Ore Benefaction: Hydraulic Washing, Magnetic Separation, Froth Flotation Method, and Leaching.

    Feb 12, 2016
  • Chemical Reactions and Equations

    The processes like crystallisation, boiling, vaporisation, burning of colour, melting point, hardness etc, are called physical changes. These are reversible in nature. The processes like photosynthesis, digestion, ripening of fruits, burning of paper which involve the change in composition as well as chemical properties and result in the formation of a new substance are called chemical changes. These are irreversible in nature. Hence we can say, chemical reaction is the process of combination of different atoms to form different products which involve a change in the physical and chemical properties.

    Feb 12, 2016
  • How Green Chemistry reduces the utilization and evolution of hazardous substances?

    Green Chemistry is a field of chemistry and chemical engineering that stresses majorly upon the design of products and processes which reduces the utilization and evolution of hazardous substances. It is different from environmental chemistry in a way that it focuses on the effects of polluting chemicals on nature while green chemistry focuses on technological approaches to prevent pollution and decreasing consumption of non-renewable resources.

    Feb 12, 2016
  • Atomic Structure

    Atoms are the smallest particle of an element that can exist, and can be regarded as the building blocks of everything. Atoms can combine to form molecules. Molecules are the smallest particle of either an element or a compound that can exist independently.

    Feb 12, 2016
  • List of Human Diseases

    The word disease implies that dis-ease (not easy). In other words malfunctioning or improper functioning of various body parts like genetic disorder, hormonal imbalance, malfunctioning of immune system of body are some factors which affects the human health or it is a condition that prevents the body or mind from working normally.

    Feb 11, 2016