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प्रश्न
Complete and balance the following equation:
\[\ce{Fe_{(s)} + H2O_{(g)} ->[Red heat]}\]
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उत्तर
\[\ce{3Fe_{(s)} + 4H2O_{(g)} ->[Red heat] Fe3O4_{(s)} + 4H2_{(g)}}\]
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संबंधित प्रश्न
‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.
What will happen if a strip of zinc is immersed in a solution of copper sulphate?
How would you show that silver is chemically less reactive than copper?
Magnesium liberates ______ gas on reacting with hot boiling water.
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
Name two metals which cannot displace hydrogen from dilute acids.
Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
What special name is given to substances like aluminium oxide?
Write the equation for the reaction of:
Magnesium with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Write the equation for the reaction of:
Zinc with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
Name one metal which displaces copper from copper sulphate solution.
The least reactive metal among the following is:
The elements whose oxides can turn litmus solution blue are ______.
Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
