Advertisements
Advertisements
Question
Name a metal for the given case:
It does not react with any physical state of water.
Advertisements
Solution
Copper
APPEARS IN
RELATED QUESTIONS
Show the formation of Na2O by the transfer of electrons.
The reaction of an iron nail with copper sulphate solution is ........... reaction.
(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?
Name two metals which form amphoteric oxides.
Write an equation for the reaction of:
Magnesium with oxygen
How would you show that silver is chemically less reactive than copper?
Complete and balance the following equation:
\[\ce{Na2O + H2O ->}\]
Complete and balance the following equation:
\[\ce{Fe_{(s)} + H2O_{(g)} ->[Red heat]}\]
Complete and balance the following equation:
\[\ce{Cu(NO3)2_{(aq)} + Zn_{(s)} ->}\]
Calcium is a ______ reactive metal than sodium.
What type of oxides are formed when non-metals react with oxygen? Explain with an example.
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
How do non-metals react with hydrogen? Explain with an example.
Name two metals which cannot displace hydrogen from dilute acids.
Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
One of the following is not a neutral oxide. This is:
\[\ce{CuSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Cu_{(s)}}\]
\[\ce{FeSO4_{(aq)} + Zn_{(s)} -> ZnSO4_{(aq)} + Fe_{(s)}}\]
On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.
Which of the following reactions will not occur? Why not?
- \[\ce{MgSO4_{(aq)} + Cu_{(s)} -> CuSO4_{(aq)} + Mg_{(s)}}\]
- \[\ce{CuSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Cu_{(s)}}\]
- \[\ce{MgSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Mg_{(s)}}\]
A cable manufacturing unit tested few elements on the basisof their physical properties.
| Properties | W | X | Y | Z |
| Malleable | Yes | No | No | Yes |
| Ductile | Yes | No | No | Yes |
| Electrical conductivity | Yes | Yes | Yes | No |
| Melting Point | High | Low | Low | High |
Which of the above elements were dicarded for usage by the company?
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
