Question # 1

The cathode of Daniel cell is made up of

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Zn

Cu

AI

C

Which one is not a property of electrolytic cell?

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It consists of one complete cell

Anode has +ve charge

It converts electrical energy into chemical one

Anode has -ve charge

Gases produced in Nelson's cell are:

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H₂ and O₂

H₂ and CI₂

H₂ and N₂

CI₂ and O₂

NaOH is prepared by ____________ of NaCL (aqueous).

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Electrolysis

Decomposition

A & B

Nil

It is a strong electrolyte

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H2O

CH3COOH

NaOH

C6H6

____________ agents gains electrons in chemical reaction.

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Reduction

Oxidation

Both

None of these

Which one of the following is not an electrolyte?

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sugar solution

sulphuric acid solution

Lime solution

Sodium chloride solution

It is a good reducing agent

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Fe

H

C

O

The most common example of corrosion is:

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Chemical decay

Rusting of iron

Rusting of aluminum

Rusting of tin

Electrolyte is ____________ solid form.

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in

Sometimes in

Never in

Always in

____________ of copper is done by electrolysis.

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Production

Refining

Both

Nil

Cu + 2AgNO3 -------> Cu(NO3) +2Ag. In this reaction reducing agent is:

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Cu

AgNO3

Cu(NO3)2

Ag

Oxidation means

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Gain of oxygen

Removal of oxygen

Gain of hydrogen

Gain of electrons

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