A metal occurs in nature as its ore X which on heating in air convert to Y .Y reacts with unreacted X to give the metal. The metal is

Hydrogen reacts with metal oxides to give the corresponding metals.

Name two metals which occur in native state in nature

Alkali metal hydrides react with water to give

A metal X reacts with water to produce a highly combustible gas Y, and a solution Z. another metal P reacts with Z to give the same gas Y. X,Y,Z and P respectively are

Nitrate is converted into metal oxide on heating. This metal is:

The metal which mainly occurs as oxide ore in nature is :

Oxides of which metal upon heating producess metal

Give reasons : A sulphide ore is converted to its oxide to extract the metal.

A metal which does not react with nitrogen is :

When metal reacts with O2 it forms black solid which on reacting with Hydrogen gives back metal. Identify metal.