Advertisements
Advertisements
प्रश्न
Identify the gas evolved in the following reaction:
\[\ce{MnO2}\] reacts with concentrated \[\ce{HCl}\].
उत्तर
Chlorine
Explanation:
Manganese oxide reacts with cone. \[\ce{HCl}\], releasing greenish colored chlorine and forming manganese chloride.
\[\ce{MnO2 + HCl2 -> MnCl2 + Cl2 + 2H2O}\]
APPEARS IN
संबंधित प्रश्न
Identify the gas evolved and give the chemical test in the following cases
Dilute hydrochloric acid reacts with sodium sulphite.
For the preparation of hydrochloric acid in the laboratory:
Why is the direct absorption of hydrogen chloride gas in water not feasible?
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.
Explain, why (or give reasons for)
In the preparation chloride from sodium chloride, the gas can be obtained below 200°C or above. But the lower temperature is preferred.
Explain, why (or give reasons for)
Hydrogen chloride is not collected over water.
Explain, why (or give reasons for)
HCI gas does not conduct electricity, but hydrochloric acid conducts electricity.
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
Write the equation for :
The preparation of hydrogen chloride from sodium chloride and sulphuric acid. State whether the sulphuric acid should be concentrated or dilute.
What property of hydrogen chloride is demonstrated when it is collected by downward delivery (upward displacement) ?
State the observation for action of dilute hydrochloiric acid or iron (II) sulphate.
State a relevant reason for the following:
Hydrogen chloride gas cannot be dried over quick lime.
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.
\[\ce{NH4OH + HCl ->}\]
