MCQ
The cyclotrimetaphosphoric acid is
- A$(HPO_3)_3$ and contains $9\,\sigma -$ bonds
- B$H_3P_3O_6$ and contains $12\,\sigma -$ bonds
- ✓$(HPO_3)_3$ and contains $15\,\sigma -$ bonds
- D$H_3P_3O_6$ and contains $18\,\sigma -$ bonds
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$A$ and $B$ are :
$(I)\, [CrCl_2(NO_2)_2(NH_3)_2]^-$ $(II)\, [Co(NO_2)_3(NH_3)_3]$
$(III)\, [PtCl(NO_2)(NH_3 )(py)]$ $(IV)\, [PtBrCl(en)]$
$(I)\,\,\,-\,\,\,(II)\,\,\,-\,\,\,(III)\,\,\,-\,\,\,(IV)$