Out of Fe²⁺, Co²⁺, Cr³⁺, Ni²⁺, the one which shows the lowest magnetic moment is:
[Atomic number: Fe = 26, Co = 27, Ni = 28, Cr = 24]
Magnetic moment ∠unpaired electrons.
Fe²⁺
Co²⁺
Cr³⁺
Ni²⁺
Ni²⁺ has 3d⁸ configuration with 2 unpaired electrons, giving the lowest magnetic moment compared to others.
The steam volatile compounds among the following are:

The structure of the major product formed in the following reaction is:


Draw a rough sketch for the curve $y = 2 + |x + 1|$. Using integration, find the area of the region bounded by the curve $y = 2 + |x + 1|$, $x = -4$, $x = 3$, and $y = 0$.