Which of the following does not act as Lewis acid?

Question

Which of the following does not act as Lewis acid? (A)  β  (B)  10Ω  (C)  15Ω  (D)  5Ω

Tardigrade Admin · Accepted Answer

Lewis acid is one which can accept an electron pair. Since K+ has complete octet Na+ it cannot accept an electron pair and hence cannot act as Lewis acid.

Q. Which of the following does not act as Lewis acid?

$β$

$10Ω$

$15Ω$

$5Ω$

Lewis acid is one which can accept an electron pair. Since $K^{+}$ has complete octet $N a^{+}$ it cannot accept an electron pair and hence cannot act as Lewis acid.