To separate $\ce{NH4Cl}$ from edible salt ($\ce{NaCl}$):

Question

Accepted Answer

Sublimation can separate the $\ce{NH4Cl}$

Answer

Filtration is best

Answer

They cannot be separated

Answer

Boiling water is best

To separate NHX4Cl\ce{NH4Cl}NHX4​Cl from edible salt (NaCl\ce{NaCl}NaCl):