Science

Change of State of a Matter

Science > Chemistry > States of Matter  > You are Here   Melting (Solid → Liquid): The process of change of solid substance into its liquid state is called melting or fusion. The […]

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Chemical Reactions

Science > Chemistry > Some Basic Concepts of Chemistry  > You are Here Physical Change: A change in which only physical properties of a substance are changed is called physical change. In a physical […]

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Human Reproductive System (Female)

The female reproductive system is divided into external and internal genitalia. Female External Genitalia: The ‘Vulva’ or the female external genital organs are those genital organs that are present on […]

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Symbol, Formulae and Naming of Compounds

Science > Chemistry > Some Basic Concepts of Chemistry  > You are Here In a chemical reaction, the molecular composition changes and it is represented by a chemical equation. In a chemical equation, the […]

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Atomic Mass by Dulong Petit Method

Pierre Louis Dulong (12 February 1785 – 19 July 1838) was a French physicist and chemist, remembered today largely for the law of Dulong and Petit. He worked on the specific heat capacity and the expansion and refractive indices of […]

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Bonding in Organic Compounds

Generally, organic compounds are formed by covalent bonds among the constituent atoms. Carbon is tetravalent. It contains four electrons in its valence shell. One carbon can share its valence electrons […]

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Nuclear Chemistry

Introduction: Researches by J.J. Thomson, Dalton, Rutherford,  and Mosley showed that an atom is smallest but not the ultimate particle of the matter. An atom consists of subatomic particles, protons, […]

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Refraction Through Prism

 Prism: A prism is a portion of a transparent medium which is bounded by non-parallel plane surfaces. The two plane surfaces ABCD and AEFD intersecting each other in line AD […]

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Human Reproductive System (Male)

Reproduction: The process of formation of life from pre-existing life is called reproduction. In animals two types of reproduction are observed a) asexual reproduction and b) sexual reproduction. Asexual Reproduction: […]

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