Question:
Which of the following is an inert gas ?
Which of the following is an inert gas ?
Updated On: Mar 7, 2024
- $H_2$
- $O_2$
- $N_2$
- Argon
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Elements belonging to the $18^{\text {th }}$ group of modern periodic table are known as inert gases or noble gases. Their general electronic configuration is $n s^{2} p^{6}$. They are called so because they have eight electrons (Octet) in their outermost shell (except Ile which has $2$ electrons) due to which they are unreactive i.e., no tendency to lose or gain or share electrons. Besides hydrogen has got $1$ electron oxygen bas $6$ electrons and nitrogen has $5$ electrons in the gutermost shelll, which cause them to react and form $H _{2}, N _{2}$ and $O _{2}$ molecules. All inert gases are monoatomic $i . e .$, have only one atom in their molecule.
Was this answer helpful?
2
0
Top Questions on p -Block Elements
- $\textbf{Choose the correct statements about the hydrides of group 15 elements.}$
A. The stability of the hydrides decreases in the order \(\text{NH}_3 > \text{PH}_3 > \text{AsH}_3 > \text{SbH}_3 > \text{BiH}_3\)
B. The reducing ability of the hydrides increases in the order \(\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3\)
C. Among the hydrides, \(\text{NH}_3\) is a strong reducing agent while \(\text{BiH}_3\) is a mild reducing agent.
D. The basicity of the hydrides increases in the order \(\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3\)
Choose the most appropriate from the option given below:- JEE Main - 2024
- Chemistry
- p -Block Elements
- Identify the correct statements about p-block elements and their compounds.
(A) Non metals have higher electronegativity than metals.
(B) Non metals have lower ionisation enthalpy than metals.
(C) Compounds formed between highly reactive nonmetals and highly reactive metals are generally ionic.
(D) The non-metal oxides are generally basic in nature.
(E) The metal oxides are generally acidic or neutral in nature.- JEE Main - 2024
- Chemistry
- p -Block Elements
- $\textbf{Reduction potential of ions are given below:}$
\[ \begin{array}{ccc} \text{ClO}_4^- & \text{IO}_4^- & \text{BrO}_4^- \\ E^\circ = 1.19 \, \text{V} & E^\circ = 1.65 \, \text{V} & E^\circ = 1.74 \, \text{V} \\ \end{array} \]
The correct order of their oxidising power is:- JEE Main - 2024
- Chemistry
- p -Block Elements
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.
- JEE Main - 2024
- Chemistry
- p -Block Elements
- Taking stability as the factor, which one of the following represents correct relationship?
- NEET (UG) - 2023
- Chemistry
- p -Block Elements
View More Questions
Questions Asked in AFMC exam
- 1200 ml of air remaining in lungs even after forceful expiration is
- AFMC - 2012
- Exchange Of Gases
- A dicot plant in which scattered vascular bundles are present in stem is
- AFMC - 2012
- Anatomy of Flowering Plants
- Which plays an important role in the dispersal of spores in Funaria?
- AFMC - 2012
- Kingdom Plant
- Sexual reproduction in eubacteria takes place by
- AFMC - 2012
- Kingdom Monera
- Which of the following acid is also a vitamin?
- AFMC - 2012
- Digestion and absorption
View More Questions
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