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प्रश्न
Which are the industrial uses of acids?
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उत्तर
Industrial uses of acid are:
- Sulphuric acid is used in manufacturing fertilizers such as superphosphate, ammonium sulphate etc.
- Sulphuric acid is used in the manufacture of dyes.
- Nitric acid is used in the manufacture of paints.
- Sulphuric acid is used in the manufacture of drugs.
- Sulphuric acid is used in the manufacture of explosives.
- Sulphuric acid is used in batteries, which is used in cars etc.
- Tannic acid is used in the manufacture of ink and leather.
- Hydrochloric acid is used for making aqua regia, which is used to dissolve noble metals such as gold and platinum.
- Sulphuric acid is used in the manufacture of jet fuel, kerosene and leather.
संबंधित प्रश्न
What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)?
When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.
- What are X, Y and Z?
- Write equations for the reactions which take place:
- When limestone reacts with dilute HCl.
- When gas X reacts with lime water to form white precipitate Y.
- When excess of gas X dissolves white precipitate Y to form a soluble compound Z.
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Dil. HCl acid is stronger than highly concentrated acetic acid.
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Weak electrolyte
Choosing the correct words given in brackets, complete the sentence given below:
An acid is a compound which, when dissolved in water gives ______ ( hydronium / hydroxide) ions as the only ______ (positive/negative) ions.
Name the positive ion formed When an acid is dissolved in water.
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Match the chemical substances given in Column (A) with their appropriate application given in Column (B)
| Column (A) |
Column (B) |
| (A) Bleaching powder | (i) Preparation of glass |
| (B) Baking soda | (ii) Production of H2 and Cl2 |
| (C) Washing Soda | (iii) Decolourisation |
| (D) Sodium chloride | (iv) Antacid |
Explain the following:
\[\ce{H3PO3}\] is not a tribasic acid.
