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One of the gases that produced from roasting of iron ore can be used in contact method

Which of the following alloys contains a nonmetal

The compound used in manufacture of sun protection cosmetics is paramagnetic and colored

One of the following alloys is of high rigidity and elasticity

Is an element from the 1st transition series and magnetic moment of it in(n=M):MO2=zero so,(M) found in group

Chemical inactivity is the formation of non-porous layer of metal oxide,which has larger molecular volume than metal atoms,which prevents further oxidation

Ferrous ion is more stable than ferric ion

Excluding scandium and zinc of the first transition series are charactrized by several oxidation states

In the first transition series,element which has the maximun oxidation state can not be used in its pure form

What is the represenation of a reversible reaction