Q25Multiple choice
An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
- (a)Mg
- (b)Na
- (c)P
- (d)Ca
Show answer
(b) Na
An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
(b) Na