A student working in the laboratory kept and aqueous solution of ferrous suphate in a vessel made up of zinc. After a few days, he found that the vessel had developed holes and cracks (i) why did the vessel develop holes in it ? (ii) What is the chemical reaction that takes place gt? (iii) what is the value assouciateed with this?

A student working in the laboratory kept and aqueous solution of ferro

1.	A student working in the laboratory kept and aqueous solution of ferrous suphate in a vessel made up of zinc. After a few days, he found that the vessel had developed holes and cracks (i) why did the vessel develop holes in it ? (ii) What is the chemical reaction that takes place gt? (iii) what is the value assouciateed with this?
Answer» (i) Zinc is placed above iron in the reactivity series.It has therefore. Reduced `Fe^(2+)` ions to Fe and it has been oxidised (ii) `Zn(s)+Fe^(2+)(aq)rarrZn^(2+)(aq)+Fe(s)` (iii)We should be very careful while selectingh container for stroing certain chemicals. Only those metals should be used for making the vessels or container s which are not involved in any type of chemical reactions.

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