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प्रश्न
Sulphuric acid has the highest importance in the chemical industry. Why?
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उत्तर
Sulphuric acid is the most important chemical in industries. Apart from this, it is widely used in daily life. It is used in the manufacturing of various materials. Sulphuric acid can either be concentrated or diluted. In the chemical industry, sulphuric acid holds the highest importance due to the following reasons:
- It is used in the production of fertilizers such as superphosphate and ammonium sulfate.
- Sulphuric acid is an essential component in the production of phosphoric acid, which is used in agriculture.
- It is widely used for fuel purification.
- It helps in improving the production of gasoline, diesel, and other fuels.
- It is used in the manufacturing of various medicines, detergents, and plastics.
- It plays a major role in the production of dyes, explosives, artificial silk, and textile processing.
- It is used for cleaning iron and steel and removing rust.
- It is essential for purifying copper and other metals.
- It is widely used in car batteries.
- It is used for water and wastewater treatment.
- It acts as a disinfectant and helps in reducing impurities in water.
- It is used in dyeing fabrics, producing rayon, and manufacturing paper.
- It is essential for the production of detergents and soaps.
संबंधित प्रश्न
Name one natural source of the following acid:
Oxalic acid
Name one animal whose stings contain formic acid (or methanoic acid).
What do you understand by the term, acid?
Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
Complete the following table and write one equation for each to justify the statement:
|
Reactants |
Products |
Method |
|
Soluble base + Acid (dil) |
Salt + water |
Neutralisation Titration |
|
Metal + Non-metal |
Salt (soluble/insoluble) |
______ |
|
Insoluble base + ______ |
Salt (soluble) + water |
______ |
|
Active metal + Acid (dil) |
______ + ______ |
______ |
|
Soluble salt solution (A) + Soluble salt solution (B) |
Precipitated salt + Soluble salt |
______ |
|
Carbonate/bicarbonate + Acid (dil) |
Salt + ______ + ______ |
Decomposition of carbonate |
|
Chlorides/nitrates + Acid (conc.) |
______ + ______ |
Decomposition of chlorides and nitrates |
What are the uses of acids?
Match the acids given in column (A) with their correct source given in column (B)
| Column (A) | Column (B) |
| (a) Lactic acid | Tamarind |
| (b) Acetic acid | Lemon |
| (c) Citric acid | Vinegar |
| (d) Tartaric acid | Curd |
Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are ______.
Why does blue color copper sulphate become white on heating?
Match the following:
| 1. | The hardest substance in our body | a. | Aluminum phosphate |
| 2. | Citrus fruits | b. | Potash alum |
| 3. | Rice plant | c. | Insoluble in water |
| 4. | Double salts | d. | Acidic soil |
| 5. | Silver chloride | e. | Calcium phosphate |
| f. | Alkaline soil |
