Q. Temporary hardness of water can be removed by

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Q. More than 100 percent of __________ is present in oleum.

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Q. Essential oils are usually obtained using

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Q. Impurities present in brine is normally removed by treatment with

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Q. Hydrogenation of oil/fat does not

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Q. Solvay process as compared to dual process (i.e. modified Solvay process)

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Q. Builders are added in soap to act as

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Q. Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

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Q. Cement mainly contains

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Q. Sand and __________ is fused at 1300°C, to produce sodium silicate.

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Q. Coke used for the production of calcium carbide should have

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Q. Sucrose is a disaccharide consisting of

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Q. CaSO₄ .1/2H₂O is known as

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Q. __________ of quicklime produces slaked lime.

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Q. Main product in calcium carbide-water reaction is

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Q. Glauber's salt is chemically

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Q. Which of the following fuel gases contains maximum amount of carbon monoxide ?

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Q. Fourdrinier machine is used in the manufacture of

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Q. Pencillin is made employing __________ fermentation process.

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Q. Sulphuric acid saturated with SO₃ is called

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