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If EMF of Hydrogen electrode at 25°C is zero in pure water then pressure of H2 in bar 

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+1 vote
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in Chemistry by (49.9k points)

If EMF of Hydrogen electrode at 25°C is zero in pure water then pressure of H2 in bar 

(1) 10–14 

(2) 10–7 

(3) 1 

(4) 0.5

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1 Answer

+1 vote
by (46.6k points)

Correct option is:  (1) 10–14

pressure of H2 in bar

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