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Which of the following titrations results in a basic solution at the equivalence point? Select one: A....

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Chemistry

Which of the following titrations results in a basic solution atthe equivalence point? Select one:

A. NaCN titrated with HCl

B. HCl titrated with NH3

C. HCN titrated with NaOH

D. HCl titrated with NaOH

Answer & Explanation Solved by verified expert
3.7 Ratings (586 Votes)

A. NaCN titrated with HCl

NaCN   +    HCl    -------->   NaCl   +     HCN    

Formation of neutral salt NaCl and weak acid HCN = so acidic medium

B. HCl titrated with NH3

HCl    +      NH3     -------->      NH4Cl

Formation of salt of strong acid and weak base = acidic medium

C. HCN titrated with NaOH

HCN    +      NaOH   ------->     NaCN     +   H2O

Formation of salt of strong base NaOH and weak acid HCN = basic medium

D. HCl titrated with NaOH

HCl    +      NaOH   ------->    NaCl    +     H2O

Formation of neutral salt NaCl and water = neutral medium

Correct option (C)
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