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प्रश्न
Give one test to distinguish between the following pair of chemicals.
Sodium nitrate solution and sodium chloride solution.
उत्तर
Sodium chloride solution and sodium nitrate solution can be distinguished by using conc. Sulphuric acid to the salt solution, add freshly prepared ferrous sulphate solution and pour a few drops of conc. H2SO4 along the sides of the tube. If it's sodium nitrate solution then a brown ring would appear at the junction of the two liquid layers. But if its sodium chloride solution, it would not undergo any visible reaction.
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संबंधित प्रश्न
The following are pertaining to the laboratory preparation of hydrogen chloride gas.
State a safety precaution you would take during the preparation of hydrochloric acid.
Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?
Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.
Explain why a solution of hydrogen chloride in water turns blue litmus red and conducts electricity, while a solution of the same gas in toluene:
- has no effect on litmus, and
- does not conduct electricity.
Explain why thick white fumes are formed when a glass rod dipped in \[\ce{NH4OH}\] is brought near the mouth of a bottle full of \[\ce{HCl}\] gas.
Explain why dry hydrogen chloride gas does not affect a dry strip of blue litmus paper but it turns red in the presence of a drop of water.
Explain why hydrogen chloride gas is not collected over water.
Write the main difference in hydrogen chloride gas and hydrochloric acid.
The drying agent used to dry \[\ce{HCl}\] gas is ______.
How will you prove that the gas prepared is HCI?
Explain, why (or give reasons for)
Hydrogen chloride is not collected over water.
Describe an experiment to prove the following:
HCI gas contains the element chlorine.
Mention the reaction condition and give balanced equation to obtain: Cl2 gas from HCI gas.
Choose the correct answer from the options given below:
Bleaching powder reacts with few drops of concentrated HCl to give
Complete and balance the equations:
KMnO4 + HCI → _______+ _______ + _______ + ______ + 8H2O
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
Write the chemical equation.
In the laboratory preparation, HCl gas is dried by passing through ______.
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
