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CHEMISTRY

Chemistry
Aqueous solution of which of the following is a good conductor of electricity

Glucose
Ammonium acetate
Acetic acid
Ammonia

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Chemistry
The cathode of a lead storage battery is made up of

Manganese dioxide
Lead oxide
Zinc
Lead

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Chemistry
When a lead storage battery is discharged,

SO2 is evolved
Sulphuric acid is consumed
Lead is formed
Lead sulphate is consumed

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Chemistry
Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ?

Nickel and cadmium
Iron and cadmium
Lead peroxide and lead
Zinc and carbon

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Chemistry
In a Carbonyl group a carbon atom makes double bond with

Oxygen
None of these
Carbon
Hydrogen

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