1.

The pH is less than 7, of the solution of [Pb. PMT 2002; MP PMT 2003]

A.      \[FeC{{l}_{3}}\]
B.      \[NaCN\]
C.      \[NaOH\] 
D.      \[NaCl\]
Answer» B.      \[NaCN\]


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