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 […]
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 […]
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 […]
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. […]
Do you Know !! What is Organic Chemistry ? Definition : “The study of structure, properties, composition, reactions and preparations of hydrocarbons and their derivatives.” The word “organic” means Life. Organic Chemistry: […]
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 […]
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 […]
Do you know !! Lithium belongs to the group 1 ( alkali metals) , period 2 s-block element of the periodic table . Lithium is represented by the symbol “Li”. The atomic […]
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 […]
Molecular orbital (MO) theory explains the construction of molecular orbital diagram on the basis of following main points . 1.Formation of MOs: Atomic orbitals(AOs) linearly combine with each other to form equal […]
