The Crystal Field Stabilization Energy
(CFSE) of [CoF₃(H₂O)₃] ($$\Delta $$₀ < P) is :

Among the following compounds, which one has the shortest C – Cl bond?

The area (in sq. units) of the largest rectangle ABCD whose vertices A and B lie on the x-axis and vertices C and D lie on the parabola, y = x²–1 below the x-axis, is :

If a and b are real numbers such that
$${\left( {2 + \alpha } \right)^4} = a + b\alpha $$
where $$\alpha = {{ - 1 + i\sqrt 3 } \over 2}$$ then a + b is equal to :