NIOS Lesson 9 -

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NIOS Lesson 24 - HYDROCARBONS

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 You have studied in the previous lesson that hydrocarbons are the compounds containing carbon and hydrogen. You also know that they are classified as aliphatic, alicyclic and aromatic hydrocarbons.  They constitute a very important class of organic compounds and are widely used as fuels, lubricants and dry-cleaning agents. They are also used as important ingredients in medicines and in dyes. Petroleum and coal are the major sources of various types of hydrocarbons. The products obtained from fractional distillation of petroleum and destructive distillation of coal are used almost in every sphere of life.  Hydrocarbons are considered to be the parent organic compounds, from which other organic compounds can be derived by replacing one or more hydrogen atoms with different functional groups. In this lesson, you will study about the preparation, important physical and chemical properties of hydrocarbons. Hydrocarbons are organic compounds made up of only carbon (C) and hyd...
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Homogeneous and Heterogenous solutions

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 Here’s your diagrammatic infographic of Homogeneous and Heterogeneous Solutions — a clear visual comparison of the two types of mixtures in chemistry. It shows: 🌊 Homogeneous Solution — a uniform mixture where components are evenly distributed. Example: Salt water (NaCl + H₂O) Characteristics: single phase, no visible boundaries, completely dissolved solute. 🧪 Heterogeneous Solution — a non-uniform mixture with visibly distinct parts. Example: Sand and water Characteristics: multiple phases, visible layers, uneven distribution of components. This infographic visually contrasts consistent vs. separate mixing in solutions — perfect for lab documentation or teaching materials. Would you like me to create a follow-up infographic showing the methods of separation for heterogeneous mixtures (like filtration, decantation, and centrifugation)?  In  chemistry , a  solution  is defined as a  homogeneous mixture  of two or more substance...
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d - block elements

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