Question
Why do we boil the extract with conc. HNO3 in Lassaigne’s test for halogens?
Options :
to increase the concentration of NO₃⁻ ions
to increase the solubility product of AgCl
it increases the precipitation of AgCl
for the decomposition of Na₂S and NaCN formed
Answer :
for the decomposition of Na₂S and NaCN formed
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