Which of the following alloys is used in construction of outer fuselage of ultra-high speed air craft?

Calculate the percentage dissociation of 0.05 M solution of weak electrolyte if its molar conductivity and molar conductivity at infinite dilution are respectively. $3.3 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$ and $132 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$.

Identify the polymer used to obtain disposable cups and plates.

Beryllium shows diagonal relationship with