Question # 1

In silver oxide battery, anode is made of.

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Zinc

Copper

Lead

Graphite

Oxidation number of carbon in NaHCO₃

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+4

-6

+6

+2

The best reducing agent is

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F^-1

CI^-1

Br^-1

I^-1

The oxidation number of C in C12H22O11 is

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Zero

- 6

+ 6

12

When an atom reacts chemically and loses one or more electrons it is.

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Decomposed

Reduced

Oxidized

Catalyzed

According to classical concept, oxidation involves

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Addition of oxygen

Addition of electron

Removal of hydrogen

All are correct

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

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

The over all positive value for the reaction potential predicts that process is energetically.

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Not feasible

Feasible

Impossible

No indication

A single lead cell provides volts

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2

4

6

8

The gain of electron is known as.

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Oxidation

Reduction

Dehydration

Dehydrogenation

Which is not chargeable cell

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Lead accumulator

NiCAD cell

Fuel cell

Alkaline battery

The voltage Nickel Cadmium cell is

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1 V

1.2 V

1.4 V

1.6 V

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

In lead accumulator cathode is made up of.

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Pb

Pb coated with PbO2

PbSO4

Mixture of Pb and PbO2

During the electrolysis of molten NaCI, the ion which is reduce is

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In which compound oxidation state of chlorine is +5

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NaCl

HOCl

NaClO3

NaClO2

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