Each of the following salt solution has pH > 7 except :
sodium ethanoate
sodium carbonate
potassium hydrogen carbonate
potassium chloride
A
sodium ethanoate
B
potassium chloride
C
sodium carbonate
D
potassium hydrogen carbonate
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Solution
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Sodium ethanoate → Basic salt as it gives strong base NaOH and weak acid CH3COOH on hydrolysis.
Sodium Carbonate → Basic salt as it gives strong base NaOH and weak acid H2CO3 on hydrolysis.
Potassium hydrogen carbonate → Basic salt as it gives strong base KOH and weak acid H2CO3 on hydrogen.
Potassium Chloride is a neutral salt as it gives KOH and HCl while again neutralises each other.
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