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Question : Which of the following substances has a pH value of about 14?

Option 1: Blood

Option 2: Sodium hydroxide

Option 3: Milk of magnesia

Option 4: Lemon Juice


Team Careers360 21st Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: Sodium hydroxide


Solution : The correct option is Sodium hydroxide .

Sodium hydroxide (NaOH) is a strong base, and its aqueous solution can have a pH value close to 14, especially at high concentrations. Sodium hydroxide is a hydroxide ion (OH-) donor, and when it dissolves in water, it produces hydroxide ions, which can increase the concentration of hydroxide ions in the solution.

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