ClO2 name is chlorine dioxide

Chlorine dioxide is a kind of radical.

Which of the following elements is a d-block element? A: Copper B: Chlorine C: Aluminum D: Sodium

Which type of the halogens is used in toothpaste to prevent dental caries? A: iodine, B: chlorine, C: bromine, D: fluorine.

Which of the following can cause metabolic alkalosis? () A: Reduced effective circulation B: lack of chlorine C: Hypokalemia D: An increase in ADH E: Increased aldosterone