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CHEMISTRY

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

Ammonium acetate
Glucose
Acetic acid
Ammonia

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

Zinc
Manganese dioxide
Lead oxide
Lead

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Chemistry
When a lead storage battery is discharged,

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

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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. ?

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

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

Carbon
Hydrogen
Oxygen
None of these

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