Advertisements
Advertisements
प्रश्न
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
Advertisements
उत्तर
Sodium metal reacts violently with dilute hydrochloric acid to form sodium chloride and hydrogen. This reaction shows that sodium metal is very reactive.
\[\ce{\underset{Sodium}{2Na_{(s)}} + \underset{Hydrochloric acid}{2HCl_{(aq)}} -> \underset{Sodium chloride}{2NaCl_{(aq)}} + \underset{Hydrogen}{H2_{(g)}}}\]
APPEARS IN
संबंधित प्रश्न
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Show the formation of Na2O by the transfer of electrons.
Differentiate between metals and non-metals on the basis of their chemical properties.
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?
What will happen if a strip of zinc is immersed in a solution of copper sulphate?
Complete and balance the following equation:
\[\ce{Na + O2 ->}\]
Name another metal oxide which behaves like aluminium oxide.
Name one metal which displaces silver from a silver nitrate solution.
You are given a solution of AgNO3. Which of the following do you think cannot displace Ag from AgNO3 solution?
The least reactive metal among the following is:
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
- What is the nature of the oxide E2O?
- State whether element E is a metal or a non-metal.
- Give one example of an element like E.
Which of the following reactions will not occur? Why not?
- \[\ce{MgSO4_{(aq)} + Cu_{(s)} -> CuSO4_{(aq)} + Mg_{(s)}}\]
- \[\ce{CuSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Cu_{(s)}}\]
- \[\ce{MgSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Mg_{(s)}}\]
If A, B, C, D, E, F, G, H, I, J and K represent metals in the decreasing order of their reactivity, which one of them is most likely to occur in a free state in nature?
Name a metal for the given case:
It does not react with cold as well as hot water but reacts with steam.
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
Write the name and formula of a molecule made up of three atoms of oxygen.
The substance that will be flattened on beating with a hammer is ______.
