The molar conductivity of a $0.5 \mathrm{mol} {\mathrm{dm}}^{-3}$ solution of $\mathrm{A}\mathrm{g}\mathrm{N}{\mathrm{O}}_3$ with electrolytic conductivity of $5.76\times {10}^{-3} \mathrm{S}\mathrm{ }\mathrm{c}{\mathrm{m}}^{-1}$ at $298 \mathrm{K}$

• A

  $2.88\mathrm{ }\mathrm{S}\mathrm{ }\mathrm{c}{\mathrm{m}}^2 {\mathrm{mol}}^{-1}$
• Correct answer
  B

  $11.52\mathrm{ }\mathrm{S}\mathrm{ }\mathrm{c}{\mathrm{m}}^2 {\mathrm{mol}}^{-1}$ 
• C

  $0.086\mathrm{ }\mathrm{S}\mathrm{ }\mathrm{c}{\mathrm{m}}^2 {\mathrm{mol}}^{-1}$
• D

  $28.8\mathrm{ }\mathrm{S}\mathrm{ }\mathrm{c}{\mathrm{m}}^2 {\mathrm{mol}}^{-1}$

Hence, the correct answer is option: 'B'.