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Electrochemistry

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Chemistry I

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Chemistry

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Electrochemistry

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If a salt bridge is removed between the two half cells, the voltage
Drops to zero
Does not change
Increases gradually
Increases rapidly

A.

Drops to zero

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Which of the following cell converts the heat released during the combustion of H₂ to an electrical energy?

Mercury
Leclanche cell
Fuel cell
Daniell cell

C.

Fuel cell

128 Views

The electrolysis of dilute aqueous solution of Na₂SO₄ produces at anode and cathode respectively using Platinum electrodes

O₂, H₂
S₂O₈^2–, Na
O₂, Na
S₂O₈^2–, H₂

A.

O₂, H₂

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One coulomb is equal to

96500 Faraday
6.28 x 10¹⁸ electrons
1 electron
None of these

B.

6.28 x 10¹⁸ electrons

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Normal hydrogen electrode has been assigned a potential of

one volt
zero volt
Hundred volts
1000 volts

B.

zero volt

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