The resistance of $\frac{1}{10} M$ solution is $25 \times 10^3$ ohm. What is the molar conductivity of solution? (cell constant $=1.25 \mathrm{~cm}^{-1}$)

If the van't Hoff-factor for $0.1 \mathrm{~M} \mathrm{~Ba}\left(\mathrm{NO}_3\right)_2$ solution is 2.74 , the degree of dissociation is

What happens when ionic hydrides of $s$-block elements in molten state are electrolysed?

Which of following is not a property of red phosphorus?