Question # 1

Which of the following statements is correct about galvanic cell

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Anode is negative charged

Reduction occurs at anode

Cathode is positively charged

Reduction occurs at cathode

Electrolysis is a process in which a chemical reaction takes place at the expense of

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Chemical energy

Electrical energy

Heat energy

None of these

A cell in which electric current is produced as a result of spontaneous redox reaction is called.

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Electrolytic cell

Galvanic cell

Half cell reaction

Down's cell

Stronger the oxidizing agent, greater is the

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oxidation potential

Reduction potential

Redox potential

E.M.F of cell

The gain of electron is known as.

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Oxidation

Reduction

Dehydration

Dehydrogenation

If a strip of Cu metal is placed in a solution of FeSO₄

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Cu will be precipitated out

Fe is precipitated out

Cu and Fe both dissolve

No reaction takes place

In silver oxide battery, anode is made of.

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Zinc

Copper

Lead

Graphite

The best reducing agent is

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F^-1

CI^-1

Br^-1

I^-1

Oxidation number of carbon in NaHCO₃

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+4

-6

+6

+2

Electrochemical series is the arrangement of the electrodes in

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Increasing order of reduction potentials

Decreasing order of reduction potentials

Increasing order of oxidation reduction potential

There is no fixed arrangement

The cathodic reaction in the electrolysis of dil H2SO4, with pt electrode sis.

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Reduction

Oxidation

Both oxidation and reduction

Neither oxidation nor reduction

Electrode of the lead storage battery are immersed in dilute H2SO4 which has strength by mass

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100%

98%

30%

10%

Cell potential depends upon

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Temperature

Concentration of ions

Nature of electrolyte

All of above

When a non-spontaneous redox reaction is carried out by using the electrical current, then the process is called

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Decomposition of the substances

Cracking

Hydrolysis

Electroiysis

Which is not chargeable cell

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Lead accumulator

NiCAD cell

Fuel cell

Alkaline battery

The cathodic reaction in the electrolysis of dill. H₂SO₄with Pt electrodes is

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Reduction

Oxidation

Both oxidation and reduction

Neither oxidation nor reduction

The voltage Nickel Cadmium cell is

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1 V

1.2 V

1.4 V

1.6 V

In H2SO4the oxidation number of 'S' is

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+2

+6

+8

+4

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