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Chemistry X | Acid, Bases and Salts: NCERT Solved Questions
Acid, Bases and Salts: NCERT Solved Questions Question 1. You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution respectively. If you are given only red litmus paper, how will you identify the contents of each test tube ?…
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Chemistry X | Periodic Classification of Elements | Trends in the Modern Periodic Table
Trends in the Modern Periodic Table Valency : As you know, the valency of an element is determined by the number of valence electrons present in the termost shell of its atom. Activity 5.6 How do you calculate the valency of an element from its electronic configuration? What is the valency of magnesium with atomic…