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Grade: 11

                        

WHAT HAPPENS WHEN: 1 STEAM IS PASSED OVER RED HOT IRON? 2Mg IS TREATED WITH di.H2SO4? 3 STEAM IS PASSED OVER RED HOT COKE? SIR, HOW I COME TO KNOW THIS IN COMPETITIVE EXAMS??????

9 years ago

Answers : (4)

SAGAR SINGH - IIT DELHI
879 Points
							

Dear student,

Iron does not react with water in the ordinary temperature. It reacts only with steam. When steam is passed over red-hot iron, iron (II,III) oxide and hydrogen gas are formed.

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Sagar Singh

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9 years ago
Anas Abbas
18 Points
							

As, we know that Mg is a metal and when it reacts with dilute acid  it forms salt and hydrogen gas.

         Mg   +     H2SO4 (dil)           forms           MgSO4   +    H2    

8 years ago
abhishek
15 Points
							
we all know magnesium is a metal when it react with react with dilute acid say H2SO4 , the cation magnesium get react with sulphur dioxide present in H2S04 because H2S04 is anion and form MGS04  and hydrogen is also formed 
2 years ago
Yash Chourasiya
askIITians Faculty
246 Points
							Dear Student

1. Iron does not react with water in the ordinary temperature. It reacts only with steam. When steam is passed over red-hot iron, iron (II,III) oxide and hydrogen gas are formed.

2. Magnesium is more reactive than hydrogen and it displaces hydrogen from dilute acids. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas is evolved. This is a single displacement reaction and also exothermic.

3.When steam is passed over red hot coke, water gas (CO+ H2O)is formed.

I hope this answer will help you.
Thanks & Regards
Yash Chourasiya
3 months ago
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