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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write the chemical equation for the event. A reaction was brought about between ferric oxide and aluminium. - Science and Technology 1

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प्रश्न

Write the chemical equation for the event.

A reaction was brought about between ferric oxide and aluminium.

रासायनिक समीकरणे/रचना
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उत्तर

Aluminium is more reactive than iron. Aluminium metal replaces iron from ferric oxide to form aluminium oxide and iron

Chemical Equation:  \[\ce{2Al + Fe2O3 -> Al2O3 + 2Fe}\]

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पाठ 8: Metallurgy - Exercises [पृष्ठ १०९]

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बालभारती Science and Technology 1 [English] Standard 10 Maharashtra State Board
पाठ 8 Metallurgy
Exercises | Q 9.3 | पृष्ठ १०९

संबंधित प्रश्‍न

Give one example each of which illustrates the following characteristics of a chemical reaction:

evolution of a gas


What do you observe when dilute sulphuric acid is added to granulated zinc?


What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?


What do you observe when silver nitrate is added to a solution of sodium chloride?


What do you observe when ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.


How will you obtain  Silver chloride from silver nitrate.

Also give balanced equations for the reactions


How will you obtain Zinc chloride from zinc.

Also give balanced equations for the reactions


Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.


Select the correct answer for the statement given below:

A neutral oxide which does not react with an acid or a base to give salt and water.


Give a balanced equation for the following type of reaction:

A displacement reaction in which a metal above hydrogen in the reactivity series, displaces another metal from the solution of its compound.


In preparation of Aqua regia hydrochloric acid and _______ acid are mixed.


Explain the following reaction with the balanced equation.

Reaction of aluminium with oxygen


Explain the following reaction with the balanced equation.

Sulphur burns in air


Which among the following alloys contain mercury as one of its constituents?


Explain the following

  1. Reactivity of Al decreases if it is dipped in HNO3
  2. Carbon cannot reduce the oxides of Na or Mg
  3. NaCl is not a conductor of electricity in solid state whereas it does conduct electricity in aqueous solution as well as in molten state
  4. Iron articles are galvanised.
  5. Metals like Na, K, Ca and Mg are never found in their free state in nature.

An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.


Metal ‘A’ has electronic configuration 2, 8, 1 and metal ‘B’ has electronic configuration 2, 8, 8, 2. Out of these, which metal is more reactive? Write the reaction of this metal with dilute HCl acid.


Arrange the following as per the instruction given in the bracket:

Al, K, Mg, Ca (decreasing order of its reactivity)


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