JIPMER2015ChemistryGeneral Principles and Processes of Isolation of Metals
The catenation tendency of C , Si and Ge is in the order Ge Si C . The bond energies (in kJ mol ⁻¹ ) of C - C , Si - Si and Ge - Ge bonds, respectively are
Options
- A348,167,180
- B348,180,167
- C167,180,348
- D180,167,348
Correct answer
B. 348,180,167
Step-by-step solution
Catenation tendency decreases with the decrease in M-M bond energy. Thus, bond energies of C - C , Si - Si and Ge - Ge must be 348, 180 and 167 ~kJ ~mol ⁻¹ respectively.