Question

identify the odd one out with reference to pH
1) blood 2) toothpaste 3) detergent 4) urine

Answer 1

urine is the correct option

Answer 2

Answer : The odd one out with reference to pH is, (4) urine

Explanation :

As we know that the pH shows the acidity and basicity of the substance.

When pH is 7 then the substance is neutral.

When pH is less than 7 then the substance is acidic.

When pH is more than 7 then the substance is basic.

From the given options, the pH of the blood is 7.35-7.45 that means it is neutral or slightly basic, the pH of the toothpaste and detergent is more than 7 that means it is basic and the pH of the urine is less than 7 that means it is acidic.

Hence, the odd one out with reference to pH is, (4) urine