Question & Answer: Choose the bond below that is the weakest. a. C=S b. K-Cl c. C-I d. C≡O…..

a. C=S (two cocalent bonds are stronger)

b. K-Cl    (ionic bond as electronegativity difference is high between both elements hence, strongest bond)

c. C-I (only one covalent bond and size difference is more between both atoms. hence, weakest bond)

d. C≡O   (three cocalent bonds are stronger)

e. N≡N   (three cocalent bonds between similar atoms are stronger)