Q. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

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Q. __________ of rubber decreases after its vulcanisation.

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Q. Boiling of water containing temporary hardness produces

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Q. Starting material for the commercial production of ethyl alcohol in India is

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Q. Chloramines are used in water treatment for

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Q. Glycerine is recovered from lye by

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Q. Inversion of sucrose produces

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Q. Enzymes are organic catalysts used in the __________ reactions.

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Q. Linde process of gas liquefaction employs

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Q. Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

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Q. Ore concentration by froth floatation utilises the __________ of ore particles.

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Q. The main use of activated carbon in water treatment is to control

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Q. The most commonly used substance to speed up the sedimentation of sewage is

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Q. Sucrose is a

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Q. Which of the following is not an insecticide?

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Q. Shrinkage volume in cement setting does not depend upon the

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Q. Bisphenol A is produced by the condensation of acetone with

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Q. In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

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Q. Presence of carbonaceous matter in the sewage

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Q. Starting material for the production of styrene butadiene rubber (SBR) is

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