Question

Which of following is not Lewis base?

• A. $NH_{3}$
• B. $PH_{3}$
• C. $\left( CH _{3}\right)_{3} N$
• D. $NH _{3}$

Answer 1

Answer: (D)

$NH _{3}$

Answer 2

Lewis base are the substances which are capable of donating an electron pair.