Name two metals which will displace hydrogen from dilute acids, and two metals which will not.
Name two metals which will displace hydrogen from dilute acids, and two metals which will not.
Metals that are more reactive than hydrogen displace it from dilute acids. For example: sodium and potassium. Metals that are less reactive than hydrogen do not displace it.
For example: copper and silver.
Similar Questions
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
What are amphoteric oxides? Give two examples of amphoteric oxides.
What are amphoteric oxides? Give two examples of amphoteric oxides.
Why is sodium kept immersed in kerosene oil ?
Why is sodium kept immersed in kerosene oil ?
You are given a hammer, a battery, a bulb, wires and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals ?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.
You are given a hammer, a battery, a bulb, wires and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals ?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water