Which of the following is the correct order o | vedclass

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(A) The bond angle in hydrides of group $15$ elements depends on the electronegativity of the central atom. As the electronegativity of the central at

Vedclass · Accepted Answer

$NH_3 > PH_3 > AsH_3 > SbH_3$

Vedclass · Answer

(A) The bond angle in hydrides of group $15$ elements depends on the electronegativity of the central atom. As the electronegativity of the central atom decreases down the group $(N > P > As > Sb)$,the bond pair-bond pair repulsion decreases. Also,the bond angle decreases as the size of the central atom increases and the $s$-character in the bonding orbitals decreases. Thus,the correct order of bond angles is $NH_3 (107.8^{\circ}) > PH_3 (93.6^{\circ}) > AsH_3 (91.8^{\circ}) > SbH_3 (91.3^{\circ})$.

Which of the following is the correct order of bond angles in the given hydrides?

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