In the compounds of type $E{\rm{C}}{{\rm{l}}_3}$, Where $E = {\rm{ }}B,{\rm{ }}P$, $As,{\rm{ or }}Bi,$ the angle ${\rm{Cl}} - E - {\rm{Cl}}$ for different $E$ are in the order :

NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

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In the compounds of type

E\mathrm{C}{\mathrm{l}_3}

, Where

E = \mathrm{ }B,\mathrm{ }P

As,\mathrm{ or }Bi,

the angle

\mathrm{Cl} - E - \mathrm{Cl}

for different

E

are in the order :

View answer and explanation

Correct option: B

\mathrm{B > P > As > Bi}

Option B (

\mathrm{B > P > As > Bi}

) is correct because as the electronegativity of the central atom decreases down the group, the bond pair-bond pair repulsion decreases, leading to smaller bond angles.

NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

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