Given below are the symbols of some elements:
Mg, K, Zn, H, Ag, Cu, Al, Fe. Chose from above the metal that can decompose boiling water to liberate hydrogen.

Open in App

Solution

Among the given metals, moderately reactive metals like Al(Aluminium), and Mg (Magnesium) do not react with cold water but can decompose in boiling water to liberate hydrogen this can be shown as:
$Mg (s) + H_{2} O (l) \to MgO + H_{2} (g) Magnesium Oxide$

Suggest Corrections

Similar questions

Given below are the symbols of some elements:

Mg, K, Zn, H, Ag, Cu, Al, Fe Chose from the above A metal that tarnishes in the air within seconds.

Given below are the symbols of some elements:

Mg, K, Zn, H, Ag, Cu, Al, Fe Chose from the above A metal that does not directly combine with oxygen (even on heating) to form the metal oxide.

Give below are the symbols of some elements: Mg, K, Zn, H, Ag, Cu, Al, Fe
Choose from the above.

The metal whose oxide decomposes on heating.

Give below are the symbols of some elements: Mg, K, Zn, H, Ag, Cu, Al, Fe
Choose from the above.

Metals whose oxide can be reduced by hydrogen or carbon monoxide.

Join BYJU'S Learning Program