The correct order of increasing oxidizing power is
I2 < Br2 < Cl2 < F2
Oxidising power decreases in a group.
The outermost electronic configuration of the most electronegative element is
Fluorine has low electron affinity than chlorine because of
The second electron affinity is zero for
Which one of the following combinations represents a metallic element?
Which one of the following process requiring absorption of energy?
Which has highest melting point?
Which of the following metals exhibits more than one oxidation state?
The maximum valency of an element with atomic number is?
The correct order of reactivity of halogens is
Which element of second period forms most acidic oxide?