The most basic oxide among \(V_2O_3, V_2O_4\) and \(V_2O_5\) is \(V_2O_3\)
\(V_2O_3 = V^{+3}(d^2)\)
Magnetic moment
\(=\sqrt {(2(2+2))}\)
\(=\sqrt 8\)
\(= 2.83\)
\(≈ 3\)
So, the answer is \(3\).
Given below are two statements regarding conformations of n-butane. Choose the correct option. 
Consider a weak base \(B\) of \(pK_b = 5.699\). \(x\) mL of \(0.02\) M HCl and \(y\) mL of \(0.02\) M weak base \(B\) are mixed to make \(100\) mL of a buffer of pH \(=9\) at \(25^\circ\text{C}\). The values of \(x\) and \(y\) respectively are
Method used for separation of mixture of products (B and C) obtained in the following reaction is: 
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.