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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 ______.
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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.
संबंधित प्रश्न
Distinguish between the given pair of compounds using the test given within bracket:
A lead salt and a zinc salt (using excess ammonium hydroxide)
How is the following salt prepared:
Calcium sulphate from calcium carbonate,
The following is a list of methods for the preparation of salts.
A - direct combination of two elements
B - reaction of a dilute acid with a metal.
C - reaction of a dilute acid with an insoluble base.
D - titration of a dilute acid with a solution of soluble base.
E - reaction of two solutions of salts to form a precipitate.
Choose from the above list A to E, the best method for preparing the following salts by giving a suitable equation in each case:
- Anhydrous ferric chloride,
- Lead chloride,
- Sodium sulphate,
- Copper sulphate.
You are provided with the following chemicals:
NaOH, Na2CO3, H2O, Zn(OH)2, CO2, HCI, Fe, H2SO4, CI2, Zn.
Using the suitable chemicals from the given list only, state briefly how you would prepare iron (III) chloride.
Explain why It is necessary to find out the ration of reactants required in the preparation of sodium sulphate.
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
Write the balanced equation for the preparation of the following compounds, starting from iron and using other substance: Iron (II) chloride
Choosing the correct words given in brackets, complete the sentence given below: Lead sulphate from lead nitrate.
What is the difference between the chemical nature of an aqueous solution of HCl and an aqueous solution of NH3
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
- A is a sodium salt.
- B is an insoluble salt.
- C is a soluble salt of copper.
- D is a soluble salt of zinc.
