Chemistry class 9 most important short questions for examination 2026 Here are top 20+ important short questions of Chemistry of class 9 for examination of 2026 Q.1:- What is free radical ? Q.2:- Justify the Rutherford atomic model has defects ? Q.3:- Differentiate between shell and sub shell with examples ? Q.4:-How oxygen forms an anion ? Q.5:- Why salt dissolve in water ? Q.6:- What are halogens.Define symbol and names of halogens ? Q.7:- What is mean by Octet and duplet rule ? Q.8:- Define solution and explain the major components of solution ? Q.9:- Define oxidation and reduction reaction with example ? Q.10:- Distinguish between Periods and groups ? Q.11:- How kinetic molecular theory differentiate state of matter ? Q.12:- Describe Boyle's law with example ? Q.13:- Explain the similarity of chemical and physical properties of elements in the same family ? Q.14:-Explain importance of gold and silver ? Q.15:-Describe the dry cell with diagram ? Q.16:- Define vapour pressure and...
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