What is Destructive distillation of Coal? When coal is heated in absence of air, its destructive distillation or carbonization occurs. Main Products obtained from Destructive Distillation: Destructive distillation of coal produces the following products. Coal gas: The coal gas is also called town gas. It is mixture of H2, CO, CH4. Hydrogen …
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Coal: Coal is an important solid fossil fuel. It is a black mineral of plant origin found under earth crust. How Coal is formed? Dead plants, which were buried under the earth crust millions of years ago, they due to different bacterial and chemical reactions first converted into peat which under high temperature and pressure …
Do you know !! Berzelius gave vital force theory in 1809 . According to ‘Vital Force Theory’ 1.Organic compounds are prepared only inside the bodies of living organisms by a super natural force called vital force. 2.It is impossible to synthesize organic compounds in laboratory. Rejection of Vital Force theory: In 1828, Friedrich Wohler (a …
What are the main Sources of Organic Compounds – Class 12 Chemistry Organic Compounds Read More »
Do you know !! How do you classify chemical compounds on the basis of source? Classification of Chemical compounds: There are two main classes of Chemical compounds. 1.Organic compounds 2.Inorganic compounds They are classified on the basis of source from which they were derived. Organic compounds: The compounds which were of plant or animal origin …
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Topics covered: 1.What is the meaning of Vital Force theory ? 2. Vital Force theory was proposed by 3. Vital Force theory was rejected by 4. Organic compounds definition and examples 5. Inorganic compounds definition and examples Do you Know !!! Fundamental Principles of Organic Chemistry Vital Force Theory Berzelius gave vital force theory in …
Bond Length Definition: “The distance between the nuclei of two atoms bonded together through a single covalent bond is called bond length.” Bond Length Calculations: C ─ C bond length in aliphatic hydrocarbons as well as in diamond is 154 pm (1.54 x 10-10 m) In case of bond between identical atoms the bond length is …
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Do you know !! Bond energy is the measure of strength of bond. Polar bonds are stronger than non-polar bonds. Bond Energy Definition: “The energy required for breaking one mole of bonds or energy released during formation of one mole bonds is called bond energy” Bond Energy Unit: S.I unit for bond energy is …
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Do you know !! Lithium belongs to group 1 ( alkali metals), period 2 s-block element of the periodic table. Lithium is represented by the symbol “Li”. The atomic number of Lithium (Li ) is 3 and the mass number is 6.941. Li Electronic Configuration: The distribution of electrons in lithium electronic shells are as …
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Class 11 Chemistry States of Matter Gases !!! Important multiple choose questions: At absolute zero , molecules of hydrogen gas has energy: 1.Translational only 2.Rotational only 3.Vibrational only 4.None of these Answer ) None of these Brief Explanation : Absolute zero is the lowest possible temperature at which no gas can exist in gaseous state. …
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