1.

Which of the following is metal displacement reaction

Answer»

`Zn + CuSO_(4)rarrZnSO_(4) + Cu`
` 2Na + 2H_(2)O rarr2NaOH +H_(2)`
`Ca+2H_(2)Orarr Ca(OH)_(2)+H_2`
`2HgO rarr 2Hg+O_2`

Solution : Reactions involved in a METAL REPLACED by another metal KNOWN as metal displacement reactions.


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