q36

0. P, Q and Rare 3 metals that undergo chemical
reactions as follows.
P20 3 + 2Q → Q203 + 2P
2P + 3RO → P 203 + 3R
2RS04 + 2Q → Q2(S04)3 + 3R
Observe the reactions and arrange the metals in the increasing order of their reactivity.(NTSE Tamil Nadu, Stage-I, 2016-17)

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