$RbO_2$ is
- Peroxide and paramagnetic
- Peroxide and magnetic
- Super oxide and paramagnetic
- Super oxide and diamagnetic
The Correct Option is C
Approach Solution - 1
$RbO_2$ means $Rb^+ O^-_2$ and ion. $O^-_2$ ion is super oxide ion. It has 17 electrons and is paramagnetic.
So, the correct answer is (C): Super oxide and paramagnetic
Approach Solution -2
RbO2 is the rubidium superoxide. In this the Rb is present in +1 oxidation state and oxygen is -1.
RbO2 is an unstable and reactive compound that can be formed with the reaction between rubidium and oxygen.
The compound has unpaired electrons therefore they are paramagnetic in nature.
So, the correct answer is (C): Super oxide and paramagnetic
Top Questions on p -Block Elements
Method used for separation of mixture of products (B and C) obtained in the following reaction is:
- JEE Main - 2026
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- JEE Main - 2026
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- JEE Main - 2026
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family