The type of bonds present in ${P H}_{4} I$ are:

ionic

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covalent

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coordinate

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H -

bond

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Solution

The correct option is C ionic
It has ${P H_{4}}^{+}$ and $I^{-}$ . ${P H_{4}}^{+}$ is similar to the ammonium ion having $P$ as the central atom with $s p^{3}$ hybridization. The lone pair of $P$ in $P H_{3}$ is donated to $H^{+}$ forming phosphonium ion. This ion forms an ionic bond with $I^{-}$ forming phosphonium iodide.

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