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What is the Action of Water on Magnesium ? Write Equation of the Chemical Reaction Involved. - Science

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प्रश्न

What is the action of water on magnesium ? Write equation of the chemical reaction involved.

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उत्तर

Magnesium does not react with cold water.
 (i) However, it reacts with steam rapidly to form magnesium hydroxide and hydrogen gas.
       Mg(s) + H2O(g) →  Mg(OH)2(aq)  + H2(g)

(ii) Magnesium reacts very rapidly with steam to form magnesium oxide and hydrogen gas.
  Mg(s) + H2O(g) →  MgO(s)  +  H2(g)

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३४]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 54.2 | पृष्ठ १३४

संबंधित प्रश्न

Why is sodium kept immersed in kerosene oil?


Write equations for the reactions of calcium and potassium with water.


Write the electron-dot structures for sodium, oxygen and magnesium.


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(a) Green

(b) Colourless

(c) Pink

(d) Blue


Complete and balance the following equation:

Na  +  O2 →


What type of oxides are formed when non-metals react with oxygen? Explain with an example.


How do non-metals react with hydrogen? Explain with an example.


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Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.


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(a) Na and K
(b) K and C
(c) Na and S
(d) K and P


An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?


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(a) MgSO(aq) + Cu (s) → CuSO(aq) + Mg (s)

(b) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)

(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)


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A solution of Al2(SO4)3 in water is _____________.


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(i) Good thermal conductivity

(ii) Good electrical conductivity

(iii) Ductility

(iv) High melting point


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Find the odd one out:


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