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Chemistry

Chemistry
Which one of the following minerals is found in pure form?

Manganese
Copper
Bauxite
Iron

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Chemistry
Oxide of sulphur present in the atmosphere are washed down by rains to cause :

Industrial smog formation
Eutrophication in lakes
Lowering of pH of soil
Depletion of fossil fuel reserves

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Chemistry
Electric fuse is an alloy of

Tin and lead
Carbon and tin
Zinc and lead
Copper and iron

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Chemistry
The chemical used for cloud seeding for artificial rains is

Potassium Nitrate
Potassium Bromide
Silver Nitrate
Silver Iodide

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Chemistry
Which of the following electrodes is used in strongly alkaline solution

Silver - silver chloride electrode
Mercury - mercuric oxide electrode
Mercury - mercurous sulphate electrode
Mercury - mercurous chloride electrode

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Chemistry
The gas used for artificial fruit ripening of green fruit is

Ethane
Ethylene
Acetylene
Methane

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MORE MCQ ON Chemistry

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