Which of the following statements are correct | vedclass

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(C) $(I)$ $P_4$ has a tetrahedral structure where four $P$ atoms are at the corners,resulting in a bond angle of $60^\circ$. This causes significant a

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$(I)$ and $(IV)$

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(C) $(I)$ $P_4$ has a tetrahedral structure where four $P$ atoms are at the corners,resulting in a bond angle of $60^\circ$. This causes significant angular strain,making it highly reactive.$(II)$ $H_3PO_3$ is a dibasic acid because it contains two $P-OH$ groups. Its basicity is $2$.$(III)$ In the gas phase,$PCl_5$ has a trigonal bipyramidal structure. The three equatorial $P-Cl$ bonds are shorter than the two axial $P-Cl$ bonds.$(IV)$ In the solid state,$PCl_5$ exists as an ionic solid $[PCl_4]^+[PCl_6]^-$,where the cation $[PCl_4]^+$ is tetrahedral and the anion $[PCl_6]^-$ is octahedral. This statement is correct.Therefore,statements $(I)$ and $(IV)$ are correct.

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