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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Which statement is not true ?