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

Explain the following reaction with the balanced equation. Reaction of aluminium with oxygen

Advertisements
Advertisements

प्रश्न

Explain the following reaction with the balanced equation.

Reaction of aluminium with oxygen

टीपा लिहा
Advertisements

उत्तर

Aluminium combines with oxygen to form aluminium oxide.

\[\ce{\underset{\text{Aluminium}}{4Al_{(s)}} + \underset{\text{Oxygen}}{3O_{2(g)}} -> \underset{\text{Aluminium oxide}}{2Al2O_{3(s)}}}\]

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Metallugy - Explain the following reactions with the balanced equations

APPEARS IN

संबंधित प्रश्‍न

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.


Fill in the blank

When a piece of copper is added to silver nitrate solution, it turns ............in colour.


How will you obtain Magnesium oxide from magnesium.

Also give balanced equations for the reactions


Write chemical equation for the event.
Aluminium came in contact with air.


Write a chemical equation for the following event.

Zinc oxide is dissolved in dilute hydrochloric acid.


With reference to Water explain with suitable examples of how the reactivity of the metals could be differentiated.


Complete the statement by filling in the blank with the correct word:

The metal which reacts with steam and the reaction is reversible is ________.


Classify the following metals based on their reactivity.
Cu, Zn, Ca, Mg, Fe, Na, Li, Hg

More reactive Moderately reactive Less reactive
     
     

Explain the following reaction with the balanced equation.

Sodium burns in air


Which among the following statements is incorrect for magnesium metal?


A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH.


A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved.


An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.


A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.


A solution of CuSO4 was kept in an iron pot. After few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.


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.

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

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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×