Question

NaCl can act as
A.antagonist at optimal concentrations
B. synergistically if added in excess of optimum level
C. Both (a) and (b)
D. None of the above

Answer 1

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geeth27... answered this Buffer is shown by weak acid and its salt or weak base and its salt. Ex., Acetic acid and sodium acetate. NaCl is salt of strong acid.

NaCl + H2O -----> NaOH + HCl ​As dissociation of strong acid takes place completely, the reaction is irreversible.

Only in the case of weak acid the dissociation is partial and is reversible. In that situation only, the change in pH does not occur, which is the property of buffer. ​So aqueous solution of HCl is not a buffer.


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Answer 2

NaCl can act as
A.antagonist at optimal concentrations
B. synergistically if added in excess of optimum level
C. Both (a) and (b)
D. None of the above

b is the correct option