1. Chemical Symbols of Elements 2. Valency 3. Electrovalent (Ionic) Bond and Electrovalency 4. Chemical Formula 5. Electrovalency for Some Monoatomic Negatitve Ions 6. Polyatomic Radicals/Ions (For Ionic Compounds) 7. Negative Ions (Acid radicals) Valency Table 8. Hit and Trial Method (Inspection Method) 9. Complete Chemical Equation 10. Ionic Equations 11. Solubility Rules 12. Broad Classification of Inorganic Reactions 13. Practice Questions 14. Answers to SAQs 15. Answers to Practice Questions
Broad Classification of Inorganic Reactions
All inorganic reactions belong to the following two types. (i) *Redox Reactions:* Oxidation-Reduction reactions are popularly called redox reactions. **Oxidation and Reduction**(old definition): *Oxidation* is the process in which oxygen or any other nonmetal is added to a substance OR hydrogen or any other metal is removed from a substance. *Reduction* is the process in which hydrogen or any other metal is added to a substance OR oxygen or any other nonmetal is removed from a substance.Oxidation and reduction processes occur simultaneously in a reaction, which is therefore called redox reaction. *(Modern definition of oxidation-reduction on the basis of electron loss and gain will be discussed in the text for class-10. A large number of redox reactions cannot be explained by the old definitions. Hence we shall not discuss much regarding this.)*
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