Question

Arranging these in increasing order of their pH values NAOH ,blood lemon juice

Answer 1

lemon juice (2) ➡ blood (7.35) ➡ NaOH (13)
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Answer 2

Lemon Juice < Blood < Sodium Hydroxide (NaOH).

Explanation:

Let us arrange them in ascending order with respect to their pH values.  

The more the acidic substance, the less the pH value.  

The more the basic substance, the more the pH will be.

The pH of lemon juice is 2.2 (As citric is highly acidic).  

The pH of blood is 7.4 (Almost neutral)  

The pH of Sodium Hydroxide is 14 (Strongly Basic)

Therefore, the correct sorted (Ascending) sequence of the given substances according to their pH values are:  

Lemon Juice < Blood < Sodium Hydroxide (NaOH).

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