The variation of magnetic susceptibility $(\chi )$ with temperature for a diamagnetic substance is best represented by

Describe the bulk preparation of dihydrogen by the electrolytic method. What is the role of an electrolyte in this process?

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

Which of the following is Potash Alum?

The pressure and density of a given mass of a diatomic gas $\left(\gamma = \frac{7}{5}\right)$ change adiabatically from $(P, d)$ to $(P^{\prime}, d^{\prime})$. If $\frac{d^{\prime}}{d} = 32$,then $\frac{P^{\prime}}{P}$ is $(\gamma = \text{ratio of specific heats})$

If $f(x)$ is a polynomial of degree $n$ with rational coefficients and $1+2i, 2-\sqrt{3},$ and $5$ are three roots of $f(x)=0$,then the least value of $n$ is