Total number of molecules, in which each covalent bond is comprised of effective back bond.<br> — Chemical Bonding Chemistry Question
Question
Total number of molecules, in which each covalent bond is comprised of effective back bond.<br>$BF_3, N(SiH_3)_3, PF_3, POF_3, B(OH)_3, O(SiH_3)_2, NH(SiH_3)_2, BFH_2, BF_2(NH_2)$
Answer: 3<BR><BR>**SOLUTION:** BACK BOND FOUND IN EACH COVALENT BOND IN $\RIGHTARROW BF_3, PF_3, POF_3$
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