The number of d-electrons in Fe²+ (Z = 26) is not
equal to the number of electrons in which one of
the following?

If the value of an equilibrium constant for a particular reaction is 1.6 × 10¹², then at equilibrium the system will contain :-

Maximum bond angle at nitrogen is present in which
of the following ?

Solubility of the alkaline earth's metal sulphates in
water decreases in the sequence :-

The total number of p-bond electrons in the following
structure is :-

Nitrogen dioxide and sulphur dioxide have some
properties in common. Which property is shown by
one of these compounds, but not by the other ?