Which ion exhibits the maximum Lewis acid cha | vedclass

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

Question

(A) Lewis acid is defined as an electron-pair acceptor. According to Fajan's rule and the concept of charge density,the Lewis acidity of a cation incr

Vedclass · Accepted Answer

$B^{3+}$

Vedclass · Answer

(A) Lewis acid is defined as an electron-pair acceptor. According to Fajan's rule and the concept of charge density,the Lewis acidity of a cation increases with an increase in positive charge and a decrease in ionic size. Comparing the given ions: $B^{3+}$ has a high positive charge $(+3)$ and a very small ionic radius. $Li^{+}$,$Na^{+}$,and $Cs^{+}$ have a $+1$ charge and larger ionic radii compared to $B^{3+}$. Due to the highest charge-to-size ratio,$B^{3+}$ has the strongest tendency to accept electron pairs,making it the strongest Lewis acid among the options.

Which ion exhibits the maximum Lewis acid character?

Similar Questions

Polarisability of halide ions increases in the order:

Which of the following statements regarding the order of covalent character are correct?
$A. KF > KI ; LiF > KF$
$B. KF < KI ; LiF > KF$
$C. SnCl_4 > SnCl_2 ; CuCl > NaCl$
$D. LiF > KF ; CuCl < NaCl$
$E. KF < KI ; CuCl > NaCl$

The melting points of $(i)$ $BeCl_2$, $(ii)$ $CaCl_2$, and $(iii)$ $HgCl_2$ follow the order:

The compound with the highest degree of covalency is

Define polarization.

Vedclass Test Series

Exam Paper Generator

Online Exam Module