Advertisements
Advertisements
Question
Explain the following reaction with the balanced equation.
Reaction of aluminium with oxygen
Solution
Aluminium combines with oxygen to form aluminium oxide.
\[\ce{\underset{\text{Aluminium}}{4Al_{(s)}} + \underset{\text{Oxygen}}{3O_{2(g)}} -> \underset{\text{Aluminium oxide}}{2Al2O_{3(s)}}}\]
APPEARS IN
RELATED QUESTIONS
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 Silver chloride from silver nitrate.
Also give balanced equations for the reactions
What do you observe when Magnesium ribbon is burnt in oxygen.
Write chemical equation for the event.
Iron filings are dropped in aqueous solution of copper sulphate.
Write chemical equation for the event.
Electrolysis of alumina is done.
With reference to Acid explain with a suitable example of how the reactivity of the metals could be differentiated.
Give a balanced equation for the reversible catalytic reaction involving nitrogen as one of the reactants.
Select the correct answer for the statement given below:
The catalyst used in the catalytic reaction involving the reactants nitrogen and hydrogen.
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.
Complete the statement by filling in the blank with the correct word:
The metal which reacts with steam and the reaction is reversible is ________.
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.
Explain the following reaction with the balanced equation.
Sodium burns in air
Compound X and aluminium are used to join railway tracks.
- Identify the compound X
- Name the reaction
- Write down its reaction.
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.
Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores.
Explain the following
- Reactivity of Al decreases if it is dipped in HNO3
- Carbon cannot reduce the oxides of Na or Mg
- NaCl is not a conductor of electricity in solid state whereas it does conduct electricity in aqueous solution as well as in molten state
- Iron articles are galvanised.
- 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)