Question

which metal is highly reactive with cold water?​

Answer 1

Explanation:

Metals like potassium and sodium react violently with cold water. In case of sodium and potassium, the reaction is so violent and exothermic that the evolved hydrogen immediately catches fire. The reaction of calcium with water is less violent.

Elements: Lead; Gold; Copper; Iron; Indium...

Child material class: Zinc

Answer 2

$\huge\pink{Pottasium\:And}$

$\huge\pink{Sodium}$