Reactivity Series (decreasing) โ Class 8 Science Formula | MscTutor
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Reactivity Series (decreasing)
K > Na > Ca > Mg > Al > Zn > Fe > Pb > H > Cu > Ag > Au
This formula belongs to the chapter "Metals and Non-metals" in Class 8 Science. Use it after identifying the right variables, matching the chapter context, and writing the substitution clearly.
How to use it
Identify the quantity you need to find.
Check the related variables and units from the question.
Substitute values carefully into the formula.
Simplify step by step and write the final statement.
Worked cue
Mg displaces Fe from FeSOโ. Cu CANNOT displace Fe (lower in series)
Rule note: More reactive metal displaces less reactive from solution
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