Question:
Noble gases are adsorbed by:
Noble gases are adsorbed by:
Updated On: Jun 27, 2023
- anhydrous calcium chloride
- ferric hydroxide
- cone. $H_2SO_4$
- activated coconut charcoal
Hide Solution
Verified By Collegedunia
The Correct Option is D
Approach Solution - 1
Noble gases are adsorbed by coconut charcoal. The adsorption of different noble gases occur at different temperatures, hence charcoal is used to separate these gases. Helium is not adsorbed by charcoal (as it is very difficultly liquifiable gas).
Was this answer helpful?
0
0
Hide Solution
Verified By Collegedunia
Approach Solution -2
Coconut charcoal absorbs noble gases. Charcoal is used to separate these gases because different noble gases adsorb at various temperatures. Since helium is a gas that is exceedingly difficult to liquefy, charcoal does not absorb it.
Was this answer helpful?
0
0
Top Questions on Group 18 Elements
- Give below are two statements:
Statement-I : Noble gases have very high boiling points.
Statement-II: Noble gases are monoatomic gases. They are held together by strong dispersion forces. Because of this they are liquefied at very low temperature. Hence, they have very high boiling points.
In the light of the above statements, choose the correct answer from the options given below.- JEE Main - 2024
- Chemistry
- Group 18 Elements
- The last element of the $p$-block in $6^{th}$ period is represented by the outer most electronic configuration
- KCET - 2020
- Chemistry
- Group 18 Elements
- The noble gas that does NOT occur in the atmosphere is:
- JEE Main - 2019
- Chemistry
- Group 18 Elements
- Noble metals like gold and platinum are soluble in which of the following mixtures?
- AP EAMCET - 2019
- Chemistry
- Group 18 Elements
- $BF_3$ reacts with $NaH$ at $450\, K$ to form $NaF$ and $X$. When $X$ reacts with $LiH$ in diethyl ether. Y is formed. What is Y?
- AP EAPCET - 2018
- Chemistry
- Group 18 Elements
View More Questions
Questions Asked in Manipal exam
- Pressure inside two soap bubbles are 1.01 atm and 1.03 atm. Ratio between their volumes is
- Manipal - 2013
- Surface tension
- Which of the following is the pribnow box?
- Manipal - 2013
- Transcription
- Who has written the book Genera Plantarum?
- Manipal - 2013
- Nomenclature and taxonomy
- There is loss in weight when mixture of $ L{{i}_{2}}C{{O}_{3}} $ and $ N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O $ is heated strongly. This loss is due to
- Manipal - 2013
- anomalous behaviour of lithium
- The main function of clitellum is
- Manipal - 2013
- earthworm
View More Questions
Concepts Used:
Group 18 Elements
The Group 18 elements, also known as noble gases except for Helium, are inert in nature because they have completely filled ns2 np6 electronic configuration in their valence shells. These gases also have high ionization enthalpy and more positive electron gain enthalpy. All these elements are chemically unreactive i.e. they don’t form many compounds.
Group 18 Elements consist of six elements. They are as mentioned below:
- Helium (He)
- Neon (Ne)
- Argon (Ar)
- Krypton (Kr)
- Xenon (Xe)
- Radon (Rn)
Electronic Configuration:
The electronic configuration of Group 18 Elements along with their symbol and atomic number is given in the tabulated form below:
Trends in the Atomic Properties:
- Atomic Radius: The nuclear radii increment on moving down the group with increasing nuclear number. This is a result of the expansion of another shell at each progressive element on moving down the group.
- Electron Gain Enthalpy: Group 18 elements exhibit very stable electronic configurations. They do not have any tendency to accept an electron.
- Ionisation Potential: They have high ionisation potentials, thanks to their closed electronic configurations. This value decreases on moving down the group due to an expansion in the nuclear size.