{:("Column-I (mixed in equal volumes)" ,, "Column -II (Nature of solution)") , ( "A)" 0.2 M HCN + 0.1 M KOH ,, "P) Strong base"), ("B)" 0.2M HCl + 0.1 M KCN ,, "Q) basic buffer") , ("C)" 0.2 M NH_(3) + 0.1 M HCl ,, "R) acidic buffer"), ("D)" 0.2 M KOH + 0.1 M NH_(4) Cl ,, "S) Strong acid"):}

{:("Column-I (mixed in equal volumes)" ,, "Column -II (Nature of solut

1.	{:("Column-I (mixed in equal volumes)" ,, "Column -II (Nature of solution)") , ( "A)" 0.2 M HCN + 0.1 M KOH ,, "P) Strong base"), ("B)" 0.2M HCl + 0.1 M KCN ,, "Q) basic buffer") , ("C)" 0.2 M NH_(3) + 0.1 M HCl ,, "R) acidic buffer"), ("D)" 0.2 M KOH + 0.1 M NH_(4) Cl ,, "S) Strong acid"):}
Answer» Solution :Incomplete neutralization of WEAK acid ` rArr ` acid buffer (b)Incomplete neutralization of strong acid ` rArr ` LEFT ( C )Incomplete neutralization of weak base `rArr ` BASIC buffer (d)Incomplete neutralization of strong base `rArr` base left