Question

Study this table carefully and answer the questions based on this series and related studied concepts. Reactivity Series: K........ Na...... Ca Mg... Al... Zn Fe... Pb... H.... Cu..... Ag..... Au... (a) Name one metal that will give hydrogen gas when reacted with dilute acid and one metal that will not give Hydrogen gas with dilute acid. (b) Write the equation for the reaction of Na, Fe with water. (c) What happens when Zn is added to CuSO4 solution? Give reason. (d) Can we store CuSO4 in silver container? Give reasons.

Answer 1

a) The metal which give Hydrogen gass

:- Zn

The metal that doesn't give Hydrogen gass

:- Cu

b) Na+2H2O → Na2O + 2H2

Fe + H2O → FeO+H2

c)Zn+CuSO4→ ZnSO4+Cu2

because Zn is a more reactive metal than Cu so it displaces Cu from CuSO4

d) Yes , we can store CuSO4 in a silver container

because silver is does not react with Cu , though it is a less reactive metal than Cu.

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