Which of the following ions forms a hydroxide that is readily soluble in water?

If $|x| < 1$ and $y = x - \frac{x^2}{2} + \frac{x^3}{3} - \frac{x^4}{4} + \ldots$,then $x$ is equal to :

An inductor and a resistor are connected in series to an $AC$ source of $10 \ V$. If the potential difference across the inductor is $6 \ V$,then the potential difference across the resistor is: (in $V$)

The magnetic moment of a complex ion is $2.83 \ BM$. The complex ion is

Living organisms can be distinguished from non-living things on the basis of which ability,excluding exceptions?

Radius of gyration of a body depends on