Question

The most dangerous reaction of an acid is with the metal:

• A. $Al$
• B. $K$
• C. $Fe$
• D. $Zn$

Answer 1

Answer: (B)

$K$

Answer 2

Potassium is a very reactive metal. It evolves large heat when treated with $HCl$ . Hence, it reacts violently with $HCl$ .