Q. Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to

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Q. Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction

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Q. Sea weeds are an important source of

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Q. Polythene is a/an __________ polymerisation product.

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Q. Catalytic oxidation-dehydrogenation of methyl alcohol produces

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Q. __________ is produced using polycondensation reaction.

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Q. Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

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Q. In industrial nomenclature, alcohol means

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Q. Which of the following is the purest form of water out of the following ?

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Q. Use of water having dissolved oxygen in boilers promotes

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Q. Calcination of gypsum produces

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Q. Phthalic anhydride is produced by the oxidation of

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Q. Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.

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Q. Zeigler process

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Q. Massecuite is

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Q. The noble gas which occurs most abundantly in the atmosphere is

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Q. Production of alcohol by fermentation of molasses is an __________ process.

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Q. Main constituents of portland cement are calcium aluminate and

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Q. Pick out the wrong statement.

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Q. Common salt is generally not produced commonly by __________ method from brine.

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