Which of the following will react with I-butyne?

Which of the following will react with 1-butyne ? 1) AgNO_3 + NH_4OH 2) Cu_2Cl_2 + NH_4OH 3) Na 4) KMnO_4 // OH

Which of the following does not react with (I_(2)+NaOH) or NaOI :

Which of the following does not react with (I_(2)+NaOH) or NaOI :

Which of the following compound will not react with I_(2)//OH^(-) .

Which of the following reduces 2-butyne into cis-2-butene.