A) C ? C bond energy is large greater than Si ? Si bond energy
B) Si ? H bond energy is much lower than C ? H bond energy
C) Si has vacant p orbitals which are more susceptible for nucleophilic attack
D) All of above reasons
Correct Answer: B
Solution :
Si ? H bond energy is 393 kJ/mol Whereas C ? H bond energy is 435 kJ/mol \[Dc-c\simeq \,\,340\,\,kJ/mol\And {{D}_{Si}}{{-}_{Si}}\,=\,\,368\,\,kJ/mol\] C ? C and Si ? Si bond energies are comparable
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