Advertisements
Advertisements
प्रश्न
Give reason to explain why ClF3 exists but FCl3 does not exist.
Advertisements
उत्तर
Chlorine has vacant d-orbitals, which become excited upon bonding when electrons from the 3p-orbital are promoted to the 3d-orbital, giving it a covalency of three.
Due to the lack of unoccupied d-orbitals in the second energy shell, fluorine cannot expand its octet. As a result, it can only have one covalency.
APPEARS IN
संबंधित प्रश्न
Account for the following: Fluorine does not exhibit positive oxidation state.
F2 has lower bond dissociation enthalpy than Cl2. Why?
Which halogen compound in the following pair will react faster in SN2 reaction CH3Br or CH3I.
Which halogen compound in each of the following pairs will react faster in SN2 reaction
(CH3)3 C – Cl or CH3 – Cl
Give two examples to show the anomalous behaviour of fluorine.
Write two uses of ClO2.
With what neutral molecule is ClO− isoelectronic? Is that molecule a Lewis base?
Complete chemical reactions are:Cl2 + H2O →
Complete the following equations:
KMnO4 
Arrange the following in the decreasing order of their reducing character :
HF, HCl, HBr, HI
Select the correct alternative from the choices given :
The correct order of increasing acidic strength of the oxoacids of chlorine is:
Which one has the lowest boiling point?
Fluorine differs from the rest of the halogens in some of its properties. This is due to ____________.
The set with the correct order of acidity is:
Which of the following pairs of ions are isoelectronic and isostructural?
In solid state \[\ce{PCl5}\] is a ______.
Which of the following is isoelectronic pair?
Write the name and formula of oxoacid of fluorine.
Give a reason for the following:
Mn+2 compounds are more stable than Fe+2 compounds.
Arrange the following in the increasing order of the property mentioned:
MF, MCl, MBr, MI (ionic character)
