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What happens when steam is passed over red hot iron?

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Important Questions on Study of the First Element - Hydrogen

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
A piece of calcium is dropped in water. Write an equation for the reaction that takes place.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
What are displacement reactions? Give one example.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Can copper displace iron from iron sulphate Solution? Give reason for your answer.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen

Give equations to express the reaction between:

steam and red hot iron.

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Name the following:
The element that reacts with water to give an alkaline solution.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen

Give reason for the following:

Iron cannot displace zinc from its solution.

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
What would you observe when a piece of zinc is dropped into copper sulphate solution?
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
State and explain the reactions of gold with a solution of copper sulphate. If any?
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
For each of the following reaction, describe what would you observe and name the reaction product that is responsible for the observation:
Zinc is added to dilute sulphuric acid.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
What are displacement reactions? Give examples.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Explain why nitric acid and hot concentrated sulphuric acid are not used in the preparation of hydrogen.
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen

When a piece of iron is put into cupric sulphate solution, iron displaces copper and forms ferrous sulphate. This reaction is

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen

Write the equation for the following reaction:

Lead with copper sulphate

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Write balanced equation of the reaction in the preparation of hydrogen from a solution of potassium hydroxide (other than by electrolysis).
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Give a reason for the following:
Copper cannot displace zinc from its salt solution (zinc sulphate solution).
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen

Write the equation for the following reaction:

Magnesium with aluminium sulphate.

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
In a solution of lead acetate, a strip of metal M was dipped. After some time, lead from the solution was deposited on the metal strip. Which metal is more reactive, M or lead?
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen

Complete the following reaction:

Cu+2AgNO3→

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Science>Chemistry>Study of the First Element - Hydrogen>Preparation of Hydrogen
Iron is _____ (more/ less) reactive than copper.