The bond order of individual carbon-carbon bonds in benzene is

At $25^{\circ}C$,the solubility product of $Mg(OH)_2$ is $1.0 \times 10^{-11}$. At what $pH$ value will the precipitation of $Mg^{2+}$ ions begin in a solution containing $0.001 \ M \ Mg^{2+}$ ions?

The potential energy of a diatomic molecule is given by $U = \frac{A}{r^{12}} - \frac{B}{r^6}$,where $A$ and $B$ are positive constants. The distance $r$ between them at equilibrium is:

Select the correct statement regarding the following change:
$NO_2^+ \to NO_2 \to NO_2^-$

On which of the following lines does the point of intersection of the line $\frac{x - 4}{2} = \frac{y - 5}{2} = \frac{z - 3}{1}$ and the plane $x + y + z = 2$ lie?

If $\left|\begin{array}{cc}1-i & i \\ 1+2 i & -i\end{array}\right|=x+i y$,then $x$ is equal to