Question

Identify the longest, shortest, strongest, and weakest bonds from those highlighted in the images. 

Answer 1

Concepts and reason

In general, triple bonds are shortest in length, and single bonds are longest length.

Strength of a bond is explained on the basis of bond dissociation energy of carbon, carbon bonds.

Fundamentals

The bond length of single bond is $1.54\,{{\rm{A}}^{\rm{o}}}$ .

The bond length of double bond is $1.34\,{{\rm{A}}^{\rm{o}}}$ .

The bond length of triple bond is $1.20\,{{\rm{A}}^{\rm{o}}}$ .

The bond dissociation energies of carbon, carbon bonds are as follows:

From the above values, C-C is weakest bond.

Given compounds are shown below:

Longest bond is present in compound-D

Shortest bond is present in compound-A

Given compounds are shown below:

Strongest bond is present in compound-A.

Weakest bond is present in compound-D.

Ans:

Thus, the longest, shortest, strongest and weakest bonds are shown below:

Answer 2

& Longest Bonds: a sp hybridisation D. HC=CH-CH=CH, - lengests Bond I kizle Bend) as well as . Bra Weakest Bund due to L (Bond D) leaser s-Character). hybridization sp se sp - (Stingest Bond des to hc- ced-cho greater s-Charecter) shortest Bond: tegedett, Treble Band Band A 2o the shortest bend. Lo o se (short as well as strongest Bond (Hybridentin Mystolisations Contact Bend) isation Bond length a f Bond stability Boud strength proportional to bend strength Band length is inversely Cor Bernd Stability)

Answer 3

Bond length depends upon type or hybridisation, AS percentage of s-character increases electro- negativity of atom increases, electrons comes close to the nucleus & so that bond length also decreases The general type of bond, hybridisation, its Character & bond length is as follows. Bond Hybridisation I ss character Bond length 3 25. c-c с — с C = C sp3 sp2 33.33x 50 % 1:54 A 1.34 no 1:20 sp

Among all these compounds compound D having all single bonds so bond in compound D. is longest among all compounds. When we compair bond length between Compound A, B & C then compound A has Shortest bond than compound B because in compound Ä a highlighted bond is attached to sp hybrid carbon while in compound B single bonds are artached to sp² by brid carbon Compound C has shortest bond length among all became it contains carbon - carbon double bond, (sp² hybridisation) Answer Longert bond : compound D shortest bond: compound c o Bond length increasing order is? Bond c L Bond A < Bond B L Bond D