From separate solutions of sodium salts, NaW, NaX, NaY and NaZ have pH 7.0, 9.0 10.0 and 11.0 respectively. When each solution was 0.1 M, the strongest acid is
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a
HW
b
HX
c
HY
d
HZ
answer is A.
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Detailed Solution
The salt hydrolysis in each case occurs except NaW because its pH = 7. Thus HW is strongest acid.
From separate solutions of sodium salts, NaW, NaX, NaY and NaZ have pH 7.0, 9.0 10.0 and 11.0 respectively. When each solution was 0.1 M, the strongest acid is