For a solution with pH value 7 is ? . a) strong acid b) strong base c) weak acid d) weak base
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weak acid
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1: salt of a strong acid and a weak base are acidic with pH value less than 7 because acid is strong which retain the pH value less then 7
2: salt of a weak acid and strong base are basic with pH value more than 7because the base is strong hence pH of whole solution will bw more than 7
3: salt of strong acid and strong base is neutral because both are strong and cancels strong effects of each hence the pH will be 7
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