已知 K sp Ө (AgCl) = 1.6×10 -10 , K f Ө ( [ Ag(CN) 2 ] - ) = 1×10 21 , 则 AgCl + 2CN - = [ Ag(CN) 2 - ] + Cl - 的 K Ө 为 ( ) 。 A. 1.6×10 11 B. 1.6×10 -31 C 6.25×10 -21 D. 2.56×10 -20
A.
B.
C.
D.
D
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