ICSE Class 8 Answered
give reason
metals like cu,ag,au cannot displace hydrogen from dilute acids
Asked by nathsantanukumar | 23 Jun, 2018, 08:51: PM
Expert Answer
The series of metals arranged in the decreasing order of their reactivity is called the activity or reactivity series.
The most reactive metal is placed at the top, and the least reactive one is placed at the bottom of the series.
Metals above hydrogen may displace hydrogen from water and dilute acids, but the metals below hydrogen cannot displace hydrogen.
Since, Cu, Ag and Au are placed at the bottom of the series hence are least reactive than hydrogen and hence can not displaced Hydrogen.
Answered by Ramandeep | 25 Jun, 2018, 12:21: PM
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