Physical properties Flashcards
What are the basic properties of noble gases?
Basic physical properties of Noble gases are -
1. Monoatomic
2. Colorless
3. odorless
4. Tasteless
What is the solubility of Noble gases in water?
Solubility down the group?
Noble gases are Sparingly soluble in water
Solubility increases down the group
why do noble gases have low melting and boiling points?
Noble gases have the lowest melting and boiling point
Reason-Weak dispersion forces (Induced Dipole - Induced Dipole),
have weak intermolecular attractive forces
Which noble gas has the lowest boiling point?
He has the lowest boiling point (4.2K)
What is the unusual property of He?
The unusual property of He is
Diffuses through commonly used lab materials
He has two boiling points. Why?
He has two boiling points 4.2k and 2.6K
Reason- Because it exists in two forms He and He2
All noble gases are absorbed by coconut charcoal at suitable temperatures except?
Helium
Electron affinities of noble gases are taken as?
Electron affinities of the noble gases are taken as zero
Order of noble gases with respect to ease of liquefication
order of noble gases wit respect to ease of liquefication
Xe>Kr>Ar>Ne>He
Why are noble gases only sparingly soluble in water?
Noble gases are only sparingly soluble in water
Reason- Dipole-Induced dipole interactions
Why do noble gases exist only in monoatomic state?
Noble gases exist only in monoatomic state
Reason- Non availability of unpaired electrons
