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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 the acid-base indicator extracted from lichen.
The indicator which produces a pink colour in an alkaline solution is:
(a) methyl orange
(b) turmeric paper
(c) phenolphthalein
(d) litmus paper
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
Name the natural indicator present in curry stain.
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Carbonate or bicarbonate -> Salt + water + Carbon dioxide}\]
Identify the following solutions, whether they are acid or base.
| Solution | Change in Indicator | Acid/Base | ||
| Litmus | Phenolphthalein | Methyl orange | ||
| 1. | -- | No change | -- | |
| 2. | -- | -- | Orange colour turns red | |
| 3. | Red litmus turns blue | -- | -- | |
Tartaric acid is a ______ acid.
Table salt is acidic.
Choose the correct answer from the options given below
Which of them occurs in solid state?
Acids are bitter in taste.
The correct way of making a solution of acid in water is to ______.
