EXAMIANS
Inhalation of silica dust by human being causes
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High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes
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In water treatment plant, zeolite process is used to remove the __________ of water.
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Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances.
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Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)?
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Presence of iron and manganese in water causes
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Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as
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Presence of __________ hardness is responsible for the temporary hardness in water.
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Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal
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Polyvinyl chloride containers are not suitable for storing
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