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प्रश्न
Fill in the blanks with suitable words:
An acid is a compound which when dissolved in water forms hydronium ions as the only ______ ions. A base is a compound which is soluble in water and contains ______ ions. A base reacts with an acid to form a ______ and water only. This type of reaction is known as ______.
उत्तर
An acid is a compound which when dissolved in water forms hydronium ions as the only positive ions. A base is a compound which is soluble in water and contains hydroxyl ions. A base reacts with an acid to form a salt and water only. This type of reaction is known as neutralization.
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संबंधित प्रश्न
How is the following salt prepared:
Lead carbonate from lead nitrate.
Choose the method of preparation of the following salts, from the methods given in the list:
[List : A. Neutralization B. Precipitation C. Direct combination D. Substitution ]
(i) Lead chloride
(ii) Iron (II) sulphate
(iii) Sodium nitrate
(iv) Iron (III) chloride
Explain hydronium ion. Write the ionization of sulphuric acid showing the formation of hydronium ion.
Define the following term : Neutralisation
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphide
Write the equations for the reaction to prepare lead sulphate from lead carbonate.
Give the equation for the preparation of the following salt from the starting material given.
Lead chloride from lead carbonate (two equations)
What is the difference between the chemical nature of an aqueous solution of HCl and an aqueous solution of NH3
Mention the colour change observed when the following indicator is added:
| Solution | Acids | Alkalies |
| Alkaline phenolphthalein solution |
Match the salts underlined in Column A with the most suitable method of preparation given in Column B.
| Column A | Column B | ||
| (a) | \[\ce{ZnCl2 \text{from} Zn}\] | 1. | Precipitation |
| (b) | \[\ce{KNO3 \text{from} KOH}\]. | 2. | Direct combination |
| (c) | \[\ce{CaCO3 \text{from} CaCl2}\]. | 3. | Displacement reaction |
| 4. | Neutralization |
