Advertisements
Advertisements
प्रश्न
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Advertisements
उत्तर
When dilute hydrochloric acid is added to a reactive metal, hydrogen gas is produced.
APPEARS IN
संबंधित प्रश्न
Write equations for the reactions of calcium and potassium with water.
Write the chemical reaction when iron reacts with dilute H2SO4.
A solution of _________________ in water is green in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
Name two metals which form amphoteric oxides.
Name the metal which has been placed just below copper in the reactivity series.
Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium
What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.
A copper plate was dipped in AgNO3 solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved.
Why does aluminium not react with water under ordinary conditions?
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
What is the action of water on aluminium? Write the equation of the chemical reaction involved.
You are given samples of three metals - sodium, magnesium and copper. Suggest any two activities to arrange them in order of their decreasing reactivities.
Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
State and explain the reaction of the following metal with a solution of copper sulphate:
Gold
When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding sodium metal to water catches fire. Why is it so?
What are noble gases?
Write the chemical equation for the following reaction:
Calcium metal reacts with water.
Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
