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NEET-XII-Chemistry
Previous Year Paper year:2021
- #44The molar conductivity of \( 0.007 \,M \) acetic acid is \( 20\, S\, cm ^{2} mol ^{-1} \) . What is the dissociation constant of acetic acid? Choose the correct option. \( \left[\Lambda_{ H ^{+}}^{\circ}=350 \,S \,cm ^{2} mol ^{-1}, \Lambda_{ CH _{3} COO ^{-}}^{\circ}=50\, S\, cm ^{2} mol ^{-1}\right] \)
(A) \( 1.75 \times 10^{-4}\, mol\, L ^{-1} \)
(B) \( 2.50 \times 10^{-4}\, mol\, L ^{-1} \)
(C) \( 1.75 \times 10^{-5}\, mol\, L ^{-1} \)
(D) \( 2.50 \times 10^{-5} \, mol\, L ^{-1} \)digAnsr: CAns : C