Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyanshu kumar Best Answer
option C is correct
Due to back bonding case in BF3 it acquires double bond character...So in all these it has maximum bond strength
The F-F bond length is so short that the lone pairs of electrons on the fluorine atoms repel each other and weakens the F-F bond.
Thus the bond strength order will be 5<4<3<2<1
The only option C satisfies this...so option C is correct