Question

Select the odd pair:

Options

• Washing Soda - Acidic laundry reagent

• Common Salt - Absorbents

• Borax - Alkaline laundry reagent

• Carbon tetrachloride - Solvent

Answer 1

Washing Soda - Acidic laundry reagent

Explanation:

This pair is the odd one out because washing soda is a highly alkaline reagent, not an acidic one. Chemically known as sodium carbonate, washing soda creates a basic solution in water that helps break down grease and soften hard water. The other pairs are correctly matched based on their standard chemical functions in laundry.