pH of milk of magnesia is ______.
Answer
Correct Answer : c ) 10
Explanation :The pH of milk of magnesia (magnesium hydroxide suspension) is typically around 10.5, making it alkaline or basic in nature.
It is often used as an antacid to neutralize excess stomach acid due to its high pH.
pH of some common substances:
| Battery acid | 1.0 |
| Limes | 1.8-2.0 |
| Lemon juice | 2.2-2.4 |
| Vinegar | 2.9 |
| Apple juice | 2.9-3.3 |
| Orange juice | 3.7 |
| Tomatoes | 4.0-4.5 |
| Coffee | 5.0 |
| Tea | 5.5 |
| Rainwater | 5.6-6.0 |
| Peas | 5.8-6.4 |
| Urine | 6.0 |
| Butter | 6.1-6.4 |
| Cow’s milk | 6.4 |
| Human saliva | 6.5-7.5 |
| Water | 7.0 |
Hence, (c) is the correct answer.
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