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JEE Main20207 Jan 2020Evening ShiftChemistryElectrochemistryActual

The equation that is incorrect is:

Options

  1. AΛ m 0 KBr - Λ m 0 NaCl = Λ m 0 KBr - Λ m 0 KCl
  2. BΛ m 0 KG - Λ m 0 KQ = Λ m 0 NaG - Λ m 0 NaQ
  3. CΛ m 0 H 2 O = Λ m 0 HCl + Λ m 0 NaOH - Λ m 0 NaCl
  4. DΛ m 0 NaBr - Λ m 0 Nal = Λ m 0 KBr - Λ m 0 KI

Correct answer

A. Λ m 0 KBr - Λ m 0 NaCl = Λ m 0 KBr - Λ m 0 KCl

Step-by-step solution

Option (1) is incorrect. According to Kohlrausch's law correct expression is Λ m 0 NaBr − Λ m 0 Nal = Λ m 0 KBr − Λ m 0 KI The other statements are correct.

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