The Lassaigne's extract is boiled with conc. HNO3 while testing for halogens. By doing so it

Question

The Lassaigne's extract is boiled with conc. HNO₃ while testing for halogens. By doing so it

decomposes Na₂S and NaCN, formed

helps in the precipitation of AgCl

increases the solubility product of AgCl

increases the concentration of N$_3^ - $ ions

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