Home
Class 11
CHEMISTRY
Why is that on being heated in excess s...

Why is that on being heated in excess supply of air, K, Rb and Cs form superoxides in preference to oxide and peroxides?

Text Solution

AI Generated Solution

To answer the question of why potassium (K), rubidium (Rb), and cesium (Cs) form superoxides (MO2) in preference to oxides (MO) and peroxides (M2O2) when heated in excess air, we can break down the explanation into several key points: ### Step-by-Step Solution: 1. **Understanding the Compounds**: - Alkali metals can react with oxygen to form different types of oxides: oxides (MO), peroxides (M2O2), and superoxides (MO2). - The ions involved are: - Oxide ion (O^2-) ...
Promotional Banner

Topper's Solved these Questions

  • S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS )

    MODERN PUBLICATION|Exercise PRACTICE PROBLEM|24 Videos

  • S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS )

    MODERN PUBLICATION|Exercise Conceptual Question 1|22 Videos

  • REDOX REACTIONS

    MODERN PUBLICATION|Exercise COMPETITION FILE (Objective Questions) (C. MULTIPLE CHOICE QUESTIONS)|9 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    MODERN PUBLICATION|Exercise COMPETITION FILE (INTEGER TYPE AND NUMERICAL VALUE TYPE QUESTIONS)|10 Videos

Similar Questions

Explore conceptually related problems

when potassium burns in excess supply of air ( oxygen),it forms :-

K, Rb and Cs form which type of compounds with oxygen?

Assertion : All alkali metals do not form superoxides as one of the main products in excess of air on heating. Reason : Superoxide reacts with carbon monoxide producing a white powder and liberating dioxygen.

When heated in excess of air, alkali metals form different types of oxides depending upon the nature of the metal. Which of the following alkali metals form surperoxides ?

The process of heating the ore strongly in excess of air so that the volatile impurities are removed and the ore is changed to oxide is known as

Alkali metals burn in air to form oxides, peroxides and superoxides. Lithium burns in moist air to form normal oxide as the major product. Some lithium nitride is also formed if nitrogen is present. Sodium loses lustre and forms both normal oxide and peroxide, the peroxide being the major product. Rest of all alkali metals form peroxides. All metals can be forced to form oxides, peroxides and superoxides by dissolving in liquid ammonia and bubbling appropriate amount of O_(2) . Which of the following oxides is the strongest oxidising agent :

Alkali metals burn in air to form oxides, peroxides and superoxides. Lithium burns in moist air to form normal oxide as the major product. Some lithium nitride is also formed if nitrogen is present. Sodium loses lustre and forms both normal oxide and peroxide, the peroxide being the major product. Rest of all alkali metals form peroxides. All metals can be forced to form oxides, peroxides and superoxides by dissolving in liquid ammonia and bubbling appropriate amount of O_(2) . Which among the following oxides turn red litmus paper blue :