Advertisements
Advertisements
Question
In a solution of lead acetate, a strip of metal M was dipped. After some time, lead from the solution was deposited on the metal strip. Which metal is more reactive, M or lead?
Advertisements
Solution
The metal M is more reactive than lead because M displaces lead from lead acetate solution, which can be done only by an element that is more reactive lead.
APPEARS IN
RELATED QUESTIONS
Write equations for the reactions of iron with steam.
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
The solution of Aluminium sulphate in water is .....................
(a) Green
(b) Colourless
(c) Pink
(d) Blue
A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.
In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why.
What name is given to those metal oxides which show basic as well as acidic behaviour?
Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.
Fill in the following blank with suitable word:
Ordinary aluminium strips are not attacked by water because of the presence of a layer of ................. on the surface of aluminium.
What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.
How do metals react with hydrogen? Explain with an example.
What special name is given to substances like aluminium oxide.
Name one metal which displaces copper from copper sulphate solution and one which does not.
The least reactive metal among the following is:
(a) sodium
(b) silver
(c) copper
(d) lead
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?
Write the name and formula of a molecule made up of three atoms of oxygen.
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
