Silvery grey iron fillings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glow red. On cooling it forms a grey dull solid. Which statement is correct about the contents of the test tube in the experiment?

At the end a compound is formed

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At start, they cannot be separated with a magnet

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At the end, they can be separated with a magnet

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At start, there is a compound

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Solution

The correct option is A
At the end a compound is formed

First, iron reacts with sulphur in the presence of heat and forms FeS.

The reaction is Fe + S $\to$ FeS

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Silvery grey iron filings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glow red. On cooling, it forms a grey dull solid. Which statement is correct about the contents of the test tube in the experiment?

ake a mixture of iron fillings and sulphur powder in a test tube. Heat the test tube strongly till the mixture becomes red hot. Let the mixture cool and add dil. sulphuric acid to it. Which statement is true for the content of the test tube after the experiment?

Take a mixture of iron fillings and sulphur powder in a test tube. Heat the test tube strongly till the mixture becomes red hot. Let the mixture cool and add dil. sulphuric acid to it. Which statement is true for the content of the test tube after the experiment?

Q. The correct procedure of heating iron-sulphur mixture to prepare iron sulphide is :
(1) heat the powder mixture at the base of the test tube using a blue flame throughout.
(2) heat the iron filings and sulphur mixture in the middle of the test tube using yellow flame throughout.
(3) heat the powder mixture at the top of the test tube using an orange flame throughout.
(4) heat the iron fillings-sulphur mixture at 3/4 quarters of the test tube using a red flame throughout.

Q. What is formed if a mixture of powdered iron and sulphur is heated in a test tube?

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Silvery grey iron fillings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glow red. On cooling it forms a grey dull solid. Which statement is correct about the contents of the test tube in the experiment?

The correct option is A At the end a compound is formed First, iron reacts with sulphur in the presence of heat and forms FeS. The reaction is Fe + S → FeS

The correct option is A
At the end a compound is formed

First, iron reacts with sulphur in the presence of heat and forms FeS.

The reaction is Fe + S $\to$ FeS