Ascending order of ph value for lemon juice, human blood, milk of magnesia, sodium hydroxide solution
Answers
Lemon Juice < Blood < Milk of Magnesia < Sodium Hydroxide.
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 Milk of Magnesia is 10.5 (Moderately basic.)
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 < Milk of Magnesia < Sodium Hydroxide.
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Lemon juice < Blood < Milk of magnesia < NaOH