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Chemistry

Chemistry
Muscle fatigue is caused by the accumulation of :

Oxalacetic acid
Pyruvic acid
Uric acid
Lactic acid

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Chemistry
Epsom salt is used

In paper industry
As purgative
In softening water
In making tooth paste

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Chemistry
Magnetite is

FeCO3
Fe2O3
Fe3O4
2Fe2O3. 3H2O

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Chemistry
The chemical used in developing photographic films is

Hydroquinone
Sodium sulphate
Silver bromide
Hypo

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

Zinc
Lead
Manganese dioxide
Lead oxide

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Chemistry
Which of the following laser types is used in a laser printer?

Gas laser
Semiconductor laser
Excimer laser
Dye laser

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