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In the wet tests for detection of various cations by precipitation, Ba 2 + cations are detected by obtaining precipitate of

Options

  1. ABa(ox) : Barium oxalate
  2. BBaCO 3
  3. CBa ( OAc ) 2
  4. DBaSO 4

Correct answer

B. BaCO 3

Step-by-step solution

Ba 2 + belongs to V th  Group and hence they are precipitated with CO 3 2 - to give ppt of BaCO 3 . In Wet tests for cations, ( NH 4 ) 2 CO 3 is used as a group reagent for fifth group cations ( Ba 2 + , Ca 2 + , Sr 2 + ) . Ba 2 + + ( NH 4 ) 2 CO 3 → BaCO 3 + NH 4 ⊕

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