ICSE Class 10 Chemistry 2019 Solved Paper

Arrange the following according to the instructions given in brackets:

Question : 34 of 86

Marks: +1, -0

{\K}, {\Pb}, {\Ca}, {\Zn}

.
(In the increasing order of the reactivity)

Solution:

\; {\Pb} < {\Zn}< {\Ca}< {\K} .

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