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Explain the following reaction with the balanced equation. Dry aluminium hydroxide is ignited at 1000 °C - Science and Technology 1

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प्रश्न

Explain the following reaction with the balanced equation.

Dry aluminium hydroxide is ignited at 1000 °C

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उत्तर

When dry aluminium hydroxide is calcined by at 1000 °C, pure aluminium oxide, called alumina is obtained.

\[\ce{\underset{\text{Aluminium hydroxide}}{2Al(OH)_{3(s)}} ->[heat][1000 °C] \underset{\text{Aluminium oxide}}{Al2O_{3(s)}} + \underset{\text{Water vapour}}{3H2O_{(g)}}}\]

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पाठ 8: Metallugy - Explain the following reactions with the balanced equations

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एससीईआरटी महाराष्ट्र Science and Technology 1 [English] 10 Standard SSC
पाठ 8 Metallugy
Explain the following reactions with the balanced equations | Q 10

संबंधित प्रश्‍न

Which of the following pairs will give displacement reactions?


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(a) cinnabar
(b) calamine
(c) bauxite
(d) pyrolusite


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(a) carbonation
(b) roasting
(c) calcination
(d) anodising


Give the principles of electromagnetic separation.


Some metallic oxides can be reduced by hydrogen, carbon and carbon monoxide and some cannot. Explain.


Give reasons, why aluminum is used in:

In aluminiothermy


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a) What is the atomic number of this element?
b) What is the group of this element?
c) To which period does this element belong?


Name the following:
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(a) electronic configuration
(b) nature of oxides
(c) oxidizing or reducing action
(d) conductivity of heat and electricity


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(a) Stainless steel
(b) brass


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The metal is a liquid at room temperature.


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Write the name.

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  1. Write the name of the method.
  2. What is used as anode and cathode in this method?
  3. Write the molecular formula and use of cryolite.
  4. Write anode reaction.
  5. Write cathode reaction.

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