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प्रश्न
Name two common antacids.
उत्तर
Two common antacids are magnesium hydroxide (also called milk of magnesia) and sodium hydrogen carbonate (also called baking soda).
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संबंधित प्रश्न
Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?
Why should curd and other sour foodstuffs (like lemon juice, etc.) not be kept in metal containers (such as copper and brass vessels)?
The property which is common between vinegar and curd is that they:
(a) have sweet taste
(b) have bitter taste
(c) are tasteless
(d) have sour taste
Name the scientist who developed the pH scale.
Here are some results of solutions tested with universal indicator paper:
| Sulphuric acid | : Red |
| Metal polish | : Dark blue |
| Washing-up liquid | : Yellow |
| Milk of magnesia | : Light blue |
| Oven cleaner | : Purple |
| Car batter acid | : Pink |
Arrange the solutions in order of their increasing pH value (starting with the one with the lowest pH).
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
Name any two substances which can give solutions like A.
What damage could be caused while the pH is low?
Lemon juice will turn ______.
Name the acid present in vinegar.
A milkman adds a very small amount of baking soda to fresh milk. Why does this milk take a long time to set as curd?
