If chlorine gas is bubbled into water and then this yellowish-green coloured solution is exposed to bright sunlight for a while
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Correct Answer: Option E
Explanation:
The correct answer is E. The solution will give out oxygen gas leaving behind aqueous hydrochloric acid.
When chlorine gas (Clâ‚‚) is bubbled into water (Hâ‚‚O), it dissolves and reacts to form a mixture of hydrochloric acid (HCl) and hypochlorous acid (HOCl):
\[
Cl_2 + H_2O \rightarrow HCl + HOCl
\]
Now, when this yellowish-green solution is exposed to bright sunlight, hypochlorous acid (HOCl) decomposes:
\[
2HOCl \xrightarrow{\text{sunlight}} 2HCl + O_2
\]
So the overall result is:
- Release of oxygen gas
- Formation of hydrochloric acid
Final Products:
- Oxygen gas (Oâ‚‚) is given off.
- Aqueous HCl remains in the solution.
Therefore, the correct and complete statement is:
> E. The solution will give out oxygen gas leaving behind aqueous hydrochloric acid.
The correct answer is E. The solution will give out oxygen gas leaving behind aqueous hydrochloric acid.
When chlorine gas (Clâ‚‚) is bubbled into water (Hâ‚‚O), it dissolves and reacts to form a mixture of hydrochloric acid (HCl) and hypochlorous acid (HOCl):
\[
Cl_2 + H_2O \rightarrow HCl + HOCl
\]
Now, when this yellowish-green solution is exposed to bright sunlight, hypochlorous acid (HOCl) decomposes:
\[
2HOCl \xrightarrow{\text{sunlight}} 2HCl + O_2
\]
So the overall result is:
- Release of oxygen gas
- Formation of hydrochloric acid
Final Products:
- Oxygen gas (Oâ‚‚) is given off.
- Aqueous HCl remains in the solution.
Therefore, the correct and complete statement is:
> E. The solution will give out oxygen gas leaving behind aqueous hydrochloric acid.