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प्रश्न
State your observation in given case When dilute hydrochloric acid is added to sodium carbonate crystals
उत्तर
Sodium carbonate crystals on reaction with dilute HCl forms sodium chloride, water, and carbon dioxide gas, which is evolved with brisk effervescence. This is a neutralization reaction as sodium carbonate is a basic salt, while hydrochloric acid is an acid. The chemical equation for this reaction is as follows:
Na2CO3 + 2HCl → 2NaCl +H2O + CO2
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संबंधित प्रश्न
Certain blank spaces are left in the following table and these are labelled as A, B, C, D
and E. Identify each of them
| Lab preparation of | Reactants used | Products formed | Drying Agent | Method of collection |
|
| 1 | HCl gas | NaCl + H2SO4 |  |
conc. H2SO4 |  |
| 2 | NH3 gas |
|
Mg(OH)2 NH3 |
 |
 |
Identify the gas evolved and give the chemical test in the following cases
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Name the drying agent used and justify your choice.
Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.
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- Give the balanced equation for the reaction.
- Name the drying agent used in drying hydrogen chloride gas.
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- What arrangement is done to dissolve \[\ce{HCl}\] gas in the water?
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Write the main difference in hydrogen chloride gas and hydrochloric acid.
Explain, why (or give reasons for)
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Mention the reaction condition and give balanced equation to obtain: Cl2 gas from HCI acid.
Choose the correct answer from the options given below:
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One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
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One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Sodium sulphate solution and sodium chloride solution.
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
