Manganese, nickel and silver are all metals.
Samples of powdered manganese, nickel and silver were placed in separate test-tubes
containing dilute hydrochloric acid.
The results are shown.
What is the order of reactivity of the metals, most reactive to least reactive?
manganese → nickel → silver
2 )
manganese → silver → nickel
3 )
silver → manganese → nickel
4 )
silver → nickel → manganese
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