{:("Column I (Reaction)","Column II (Product)"),((A)Cu+dil.HNO_(3),(q)NO_(2)),((B)Cu+conc.HNO_(3),(q)NO_(2)),((C)Zn+dil.HNO_(3),(r)N_(2)O),((D)Zn+conc.HNO_(3),(s)Cu(NO_(3))_(2)),(,(t)Zn(NO_(3))_(2)):}

{:("Column I (Reaction)","Column II (Product)"),((A)Cu+dil.HNO_(3),(q)

1.	{:("Column I (Reaction)","Column II (Product)"),((A)Cu+dil.HNO_(3),(q)NO_(2)),((B)Cu+conc.HNO_(3),(q)NO_(2)),((C)Zn+dil.HNO_(3),(r)N_(2)O),((D)Zn+conc.HNO_(3),(s)Cu(NO_(3))_(2)),(,(t)Zn(NO_(3))_(2)):}
Answer» ANSWER :`A-p,s;B-q,s;C-r,t;D-q,t`