A set of metals in order of their increasing chemical reactivity is given below : silver, copper, lead, iron, zinc, magnesium and sodium.

Which of the above metals is stored in kerosene ?
Which metals will react with cold water ?
Which gas will be liberated when metals react with cold water ?
Which of the metals will react with oxygen when heated ?
Which of the metals become black in the presence of hydrogen sulphide ?

Question

Pawan Prajapati · Answer

Sodium Sodium Hydrogen Zinc, magnesium Silver

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