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pH Testing of Common Liquids
hard

Grapefruit juice: acidic :: Baking soda: ?

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Learning Path
Learning Path

Question & Answer
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2
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3
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Choose the Best Answer

A

Neutral

B

Basic

C

Acidic

D

Alkaline

Understanding the Answer

Let's break down why this is correct

Answer

Grapefruit juice is acidic because it contains citric acid, so its pH is below 7. Baking soda, or sodium bicarbonate, reacts with acids to neutralize them, which shows it is alkaline or basic. The key idea is that acids lower pH and bases raise it, so the opposite of acidic is alkaline. For example, if you add baking soda to lemon juice, the fizzing reaction stops the acidity and the solution becomes more neutral. Thus, baking soda is alkaline.

Detailed Explanation

Baking soda is a salt that reacts with water to give a solution that has a higher pH than neutral. Other options are incorrect because Some think baking soda is neutral because it is a common kitchen item; The idea that baking soda is acidic comes from its use in baking to react with acids.

Key Concepts

pH scale
Acidity and alkalinity
Hydrogen ion concentration
Topic

pH Testing of Common Liquids

Difficulty

hard level question

Cognitive Level

understand

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