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Q:

Why do we boil the extract with conc. HNO3 in Lassaigne’s test for halogens?

  • 1
    To increase the concentration of NO3- ions
  • 2
    To increase the solubility product of AgCl
  • 3
    It increases the precipitation of AgCl
  • 4
    For the decomposition of Na2S AND NaCN formed
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Answer : 4. "For the decomposition of Na2S AND NaCN formed"

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