Consider the following species:
`N^(3-)`, `O^(2-)`, `F^-`, `Na^+`, `Mg^(2+)`, and `Al^(4+)`
Arrange them in the order of increasing ionic radii.

Consider the following species: N^(3-) , O^(2-) , F^- , Na^+ , Mg^(2+) , and Al^(3+) What is common in them ?

Identify from the following the isoelectronic species: Ne, O^(2-) , Na^+ OR ar, Cl^(2-) , k^+

Which of the following Species are reducing agents? Arrange them in order of increasing strength under standard state conditions. The standard potentials are given in parenthesis. K (-2.93V), Br_2(1.09V), Mg(-2.36V), Ce^(3o+)(1.61V), Ti^(2o+)(-0.37V), Ag^(o+)(0.8 V), Ni (-0.23V).

Consider the following redox reaction Mg_((S)) +Sn_((aq))^(2+) rarr Mg_((aq))^(2+)+Sn_((s)) : Write the cell formula.

The gases H_(2),N_(2) , O_(2) and NH_(3) will diffuse in the order :

Answer the following questions: Arrange the following metals in the decreasing order of chemical reactivity: Cu, Mg, Fe,Ca, Zn, Na.

Arrange O-H, C-H and N-H bond in increasing order of their bond polarity.

Atomic numbers of the groups 13 elements are in the order B < Al < Ga < In < TI. Arrange these elements in increasing order of ionic radii of M^(3+)

Answer the following questions: 3MnO_2+ 4Alrarr 3 Mn+ 2Al_2O_3 + heat . Identify the substances undergone oxidation and reduction reactions.