Chemistry Class 10 Chapter 10 Important MCQs Federal Board Class 10th Chemistry Notes Acids, Bases and Salts Multiple Choice Questions: ———————— 2. Arrhenius acid is a chemical that emits protons when ionized in water.In Arrhenius’s theory, a base is a Explanation: A chemical that, when ionized in water, produces the Hydroxyl ion. ————————— 3. In …
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Chemical Bonds and its Types: What is a chemical bond? OR Identify and define the four major types of chemical bonding? Answer: Chemical Bond definition The attractive forces that hold the atom together to form a chemical compound or molecule are called chemical bonds. EXPLANATION: Why do atoms form chemical bonds? The chemical reactivity …
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Is Ammonium ion (NH4+ ) a molecular ion? The ammonium ion is not a molecular ion because it is formed by the coordinate covalent bond between ammonia (NH3) and hydrogen ion (H+). Due to the lone pair electron, ammonia is an electron-rich species and can easily donate a pair of electrons to electron-deficient species (H+ …
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How is the H3O+ ion formed? Formation of Hydronium ion When water (H2O) combines with H+ ion, results in the formation of hydronium ion through a coordinate covalent bond. In H2O, Oxygen is a central atom having 6 electrons in its valence shell, 2 electrons are shared with 2 H atoms and 2 lone pair(unshared) …
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Coordinate Covalent bond A coordinate Covalent bond is also known as a Dative or Dipolar Bond. Coordinate Covalent Bond Definition: It is a type of covalent bond that forms when one atom donates a pair of electrons to another atom. It is a kind of 2 – centre s electron covalent bond in which the …
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