Which of the following statements is incorrec | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The correct order of Lewis acidic character is $PF_5 > SiF_4 > SF_6$. Although $S$ has vacant $3d$-orbitals,it cannot accept a coordinate bond fro

Vedclass · Accepted Answer

$SF_6 > PF_5 > SiF_4$ : Lewis acidic character

Vedclass · Answer

(C) The correct order of Lewis acidic character is $PF_5 > SiF_4 > SF_6$. Although $S$ has vacant $3d$-orbitals,it cannot accept a coordinate bond from a Lewis base due to steric crowding,as the $S$ atom is already bonded to six $F$ atoms. Additionally,the electronegativity of $Si$ remains constant in $SiCl_4, SiBr_4,$ and $SiI_4$ as it is the same central atom,making statement $D$ also technically incorrect in its premise. However,statement $C$ is the most fundamentally incorrect regarding Lewis acidity trends.

Which of the following statements is incorrect?

Similar Questions

Which of the following is a false statement?

Which of the following orders is not correct about the property shown against it?

In a period, the first ionisation enthalpy of the element at the extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.

Which of the following statements is not correct?

Among the elements $B$,$Al$,$C$,and $Si$,
$(a)$ which element has the highest first ionisation enthalpy?
$(b)$ which element has the most metallic character? Justify your answer in each case.

Vedclass Test Series

Exam Paper Generator

Online Exam Module