CHEMCA offers free, high-quality Chemistry notes, Class 11–12 chapter summaries, JEE/NEET preparation material, revision charts, formulas, PYQs, mock tests, and topic-wise quizzes. Designed for easy learning, Chemca simplifies Organic, Physical, and Inorganic Chemistry with clear explanations, shortcuts, and exam-focused study tools for competitive exam success.
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Do visit for video lectures on important concepts and problems for exam. Complete Revision Notes ...
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Oxidation and reduction reactions play a crucial role in organic chemistry, especially in mechanisms involving alcohols, aldehydes, ketones,... -
When it comes to fuel efficiency and engine performance, Octane Number and Cetane Number are two crucial parameters. While the Octane N... -
Name reactions in organic chemistry ... -
It is a technique created by Ludwig Mond in 1899 to extract and purify nickel . It is done by converting nickel oxides (nickel combined wit...
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Bent’s Rule is a fundamental principle in chemistry that helps explain the hybridization of atomic orbitals and how electronegativity influe...
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The borax bead test is used to identify the nature of the cation present in the solution by observing the color of the bead. The color and ... -
Alcoholic beverages can be broadly classified into distilled and undistilled (also known as fermented ) types. This classif...
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