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What happens on adding dilute HCl to a mixture of iron filling and sulphur powder?
A. H2S is formed
B. A colourless and odourless gas is formed
C. A greenish solution appears
D. FeS is formed
A. H2S is formed
B. A colourless and odourless gas is formed
C. A greenish solution appears
D. FeS is formed
- a)B and C
- b)A, B and C
- c)A and B
- d)All of these
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
What happens on adding dilute HClto a mixture of iron filling and sulp...
When dilute HCl is added to a mixture of iron filings and sulphur powder, then iron being more reactive than hydrogen will displace hydrogen from the acid, forming its salt instead. The sulphur powder will not react with HQ, Following is the reaction between Fe and HCl.
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g)
Sulfur will not react with HCl and it will not conduct electricity.
FeCl2 is Pale blue-green and H2 is a colourless and odourless gas.
So, Statement B and C are correct statements.
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g)
Sulfur will not react with HCl and it will not conduct electricity.
FeCl2 is Pale blue-green and H2 is a colourless and odourless gas.
So, Statement B and C are correct statements.
Most Upvoted Answer
What happens on adding dilute HClto a mixture of iron filling and sulp...
When dilute hydrochloric acid (HCl) is added to a mixture of iron filings and sulfur powder, the following reaction occurs:
Fe(s) + H2SO4(aq) → FeS(s) + H2(g)
The reaction involves the displacement of hydrogen from the acid by the more reactive metal, iron. Here's a detailed explanation of each option:
A. H2S is formed:
The reaction between iron and sulfur in the presence of hydrochloric acid produces hydrogen sulfide gas (H2S). This can be confirmed by the rotten egg smell of H2S gas.
B. A colorless and odorless gas is formed:
This option is incorrect. The gas formed in this reaction is H2S, which has a distinct odor of rotten eggs. It is not colorless and odorless.
C. A greenish solution appears:
This option is also incorrect. The reaction between iron and sulfur does not produce a greenish solution. Instead, a black precipitate of iron sulfide (FeS) is formed.
D. FeS is formed:
This option is correct. The reaction between iron and sulfur in the presence of hydrochloric acid leads to the formation of iron sulfide (FeS). The iron reacts with sulfur to form a black precipitate of FeS.
Therefore, the correct answer is option A, as H2S gas is formed when dilute HCl is added to a mixture of iron filings and sulfur powder.
Fe(s) + H2SO4(aq) → FeS(s) + H2(g)
The reaction involves the displacement of hydrogen from the acid by the more reactive metal, iron. Here's a detailed explanation of each option:
A. H2S is formed:
The reaction between iron and sulfur in the presence of hydrochloric acid produces hydrogen sulfide gas (H2S). This can be confirmed by the rotten egg smell of H2S gas.
B. A colorless and odorless gas is formed:
This option is incorrect. The gas formed in this reaction is H2S, which has a distinct odor of rotten eggs. It is not colorless and odorless.
C. A greenish solution appears:
This option is also incorrect. The reaction between iron and sulfur does not produce a greenish solution. Instead, a black precipitate of iron sulfide (FeS) is formed.
D. FeS is formed:
This option is correct. The reaction between iron and sulfur in the presence of hydrochloric acid leads to the formation of iron sulfide (FeS). The iron reacts with sulfur to form a black precipitate of FeS.
Therefore, the correct answer is option A, as H2S gas is formed when dilute HCl is added to a mixture of iron filings and sulfur powder.
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What happens on adding dilute HClto a mixture of iron filling and sulphur powder?A. H2S is formedB. A colourless and odourless gas is formedC. A greenish solution appearsD. FeS is formeda)B and Cb)A, B and Cc)A and Bd)All of theseCorrect answer is option 'A'. Can you explain this answer?
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