Class 12

18. Surface chemistry question bank (Chemistry)

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Q1.

Which of the following can adsorb the largest volume of hydrogen gas?

(A)
Finely divided platinum
(B)
Finely divided nickel
(C)
Colloidal palladium
(D)
Colloidal platinum
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Q2.

When a dilute aqueous solution of $AgNO_3$ (excess) is added to $KI$ solution,positively charged sol particles of $AgI$ are formed due to the adsorption of which ion?

(A)
$NO_3^-$
(B)
$O_2^{2-}$
(C)
$Ag^{+}$
(D)
$K^{+}$
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