Advertisements
Advertisements
प्रश्न
Write a chemical equation for the following event.
Zinc oxide is dissolved in dilute hydrochloric acid.
Advertisements
उत्तर
Zinc Oxide is an inorganic compound with formula ZnO. It is insoluble in water. When Zinc oxide reacts with hydrochloric acid it forms zinc chloride and water. It also leads to the formation of small bubbles of hydrogen. This is a double displacement reaction.
Chemical Equation:
\[\ce{ZnO + 2HCl -> ZnCl2 + H2O}\]
APPEARS IN
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 a few pieces of iron are dropped in a blue solution of copper sulphate?
What do you observe when ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.
How will you obtain Magnesium oxide from magnesium.
Also give balanced equations for the reactions
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?
What is meant by the metal reactivity series ? State its importance, (any two points).
Write chemical equation for the event.
Iron filings are dropped in aqueous solution of copper sulphate.
Write the chemical equation for the event.
A reaction was brought about between ferric oxide and aluminium.
Write chemical equation for the event.
Electrolysis of alumina is done.
State what is meant by the ‘reactivity series of metals’
With reference to Water explain with suitable examples 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.
Explain the following reaction with the balanced equation.
Magnesium reacts with dil HCl
Explain the following reaction with the balanced equation.
Sulphur burns in air
Which among the following alloys contain mercury as one of its constituents?
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.
Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores.
