Which element would readily replace oxygen from an oxide ?

Which can readily respire without oxygen ?

Which can readily respire without oxygen ?

Which can readily respire without oxygen ?

Which can readily respire without oxygen ?

Which can readily respire without oxygen ?

Which can readily respire without oxygen ?

A s-block element (M) reacts with oxygen to form an oxide of the formula MO_2 . The oxide is pale yellow in colour and paramagnetic. The element (M) is :

Elements most readily moblised are:

Elements most readily moblised are: