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प्रश्न
Write equations for the reactions of iron with steam.
Write an equation of the reaction of iron with steam. Indicate the physical states of all the reactants and products.
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उत्तर
Iron reacts with steam to form metal oxide and hydrogen.
\[\ce{3Fe_{(s)} + 4H2O_{(g)} -> Fe2O4_{(aq)} + 4H2_{(g)}}\]
संबंधित प्रश्न
Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium
Name the metal which has been placed just below copper in the reactivity series.
Which of the two metals is more reactive: copper or silver?
Write equation for the reaction of magnesium with oxygen.
Fill in the following blank with suitable word:
Ordinary aluminium strips are not attacked by water because of the presence of a layer of ................. on the surface of aluminium.
Fill in the following blank with suitable word:
Calcium is a ................. reactive metal than sodium.
Can we keep sodium immersed under water? Why?
What is the action of water on aluminium ? Write equation of the chemical reaction involved.
Name another metal oxide which behaves like aluminium oxide.
What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
Out of aluminium, copper, calcium and tin, the most reactive metal is:
(a) aluminium
(b) copper
(c) tin
(d) calcium
A metal less reactive and another metal more reactive than hydrogen are:
(a) aluminium and lead
(b) iron and magnesium
(c) copper and tin
(d) copper and mercury
An element E reacts with water to form a solution which turns phenolphthalein solution pink. The element E is most likely to be:
(a) S
(b) Ca
(c) C
(d) Ag
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg
A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.
Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.
An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?
Tungsten wire is used in electric bulbs.
