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JEE Main
Exam
JEE Main
Subject
Chemistry
Chapter
Practical Chemistry

JEE Main · Chemistry · Practical Chemistry

A salt of NaX MgCl _ 2 → white ppt. on boiling. Thus, anion X is:

A salt of NaX→MgCl2\text{NaX}\overset{{\text{MgCl}}_{2}}{→} white ppt. on boiling. Thus, anion XX is:

Options

  1. AHCO3−HC{O}_{3}^{-}
  2. BNO3−N{O}_{3}^{-}
  3. CCO32−C{O}_{3}^{2 -}
  4. DSO42−S{O}_{4}^{2 -}

Correct answer

A. HCO3−HC{O}_{3}^{-}

Step-by-step solution

Sodium bicarbonate with magnesium chloride solution gives magnesium bicarbonate which is water soluble. On heating bicarbonate decomposes to carbonate, white ppt.
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