Question

In solid state $PB{r}_5$ exist as

• A. ${\left[PB{r}_4\right]}^{+}{\left[PB{r}_6\right]}^{-}$
• B. ${\left[PB{r}_5\right]}^{+}{\left[PB{r}_5\right]}^{-}$
• C. ${\left[PB{r}_4\right]}^{+}[B{r}^{-}]$
• D. $PB{r}_5$

Answer 1

Answer: (C)

In solid state $PB{r}_5$ existas ${\left[PB{r}_4\right]}^{+}\left[B{r}^{-}\right]$, in which ${\left[PB{r}_4\right]}^{+}$has tetrahedral shape.