Please solve q 40?

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Answer 1 · 2018-04-29T13:41:10

The answer is #option (2)#

#Fe(s)+CuSO_4(aq) rarr Cu(s)+FeSO_4(aq)#

#Fe(s)+Cu^(2+)(aq) rarr Cu(s)+Fe^(2+)(aq)#

#2.8g " of iron"# displaces #3.2g " of copper"#

#1.0g " of iron"# displaces #(3.2/2.8)g " of copper"#

#28g " of iron"# displaces #(3.2/2.8*28)g " of copper"#

The equivalent mass of copper is

#=(3.2/2.8*28)g#

#=32g#

The answer is #option (2)#