Select the correct statement(s):

1.	Select the correct statement(s):
Answer» ALKALINE solution of POTASSIUM tetraiodomercurate (II) gives brown ppt. with ammonium chloride solution. On warming MIXTURE of `NH_(4)CI` and `NaOH` solution, evolved gas form deep blue complex with `CuSO_(4)(aq)`. On warming mixture of `NH_(4)CI` and `NaOH` solution, evolved gas turns `Hg_(2)(NO_(3))_(2)` solution black. `NH_(4)^(+) +NaOH overset(Delta)RARR` Only has 'X' evolved gas 'X' turns moistened blue litmus paper red. Answer :A::B::C

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