Statement I : Pt black is used in the construction of SHE(standard hydrogen electrode)Statement II : Powdered substances are highly effective catalysts
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a
Both statements I and II are correct
b
Statement - I is correct and statement - II is incorrect
c
Statement - I is incorrect and statement - II is correct
d
Both statements I and II are incorrect
answer is A.
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Detailed Solution
I) Pt black is chemically inert and also has the tendency to adsorb hydrogen gasII) Powdered substances have greater surface area and can adsorb reactant molecule on to their surface more effectively.