Q.
Which statement is not true ?
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a
pH of 1 × 10-8 M HCl is 8
b
96500 coulomb deposits 1 g equivalent of copper
c
Conjugate base of H2PO4- is HPO42-
d
pH + pOH = 14 for all aqueous solution
answer is A.
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Detailed Solution
pH of 10-8 M HCl is slightly less than 7 (HCl is acid)Since it is a very dilute solution, [H+]= (10-8+10-7)M
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