Q28 of 400 Page 131

How would you show that silver is chemically less reactive than copper ?

silver is chemically less reactive than copper can be seen when a strip of silver metal is kept immersed in copper sulphate solution for some time then the silver is not able to displace copper from copper sulphate solution (to form a red-brown coating on silver strip).

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26 What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)? 27 What happens when iron nails are put into copper sulphate solution ? 29 Give reasons for the following:

Blue colour of copper sulphate solution is destroyed when iron filings are added to it.

 30 Name a non-metal having a very high melting point.