Q321
Open questionLime and soda ash are added to water to remove
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Q322
Open questionCommercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is
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Q323
Open questionHaemoglobin is a/an
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Q324
Open questionChalcopyrite is the main ore of
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Q325
Open questionPhthalic anhydride is made by the
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Q326
Open questionIron ore hametite is concentrated using
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Q327
Open questionHard water
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Q328
Open questionChemical formula of BHC, which is an insecticide is
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Q329
Open questionAt very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
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Q330
Open questionWhich of the following is an explosive?
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Q331
Open questionWhich of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?
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Q332
Open questionThermosetting plastic materials
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Q333
Open questionIndustrial production of chloroform requires acetone and
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Q334
Open questionYellow phosphorus is transported under
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Q335
Open questionSO2 is bubbled through hot sugar cane juice to
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Q336
Open questionHydrazine is largely used
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Q337
Open questionHydrogenation of oil does not
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Q338
Open questionHydrolysis of sugar is called
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Q339
Open questionEthyl alcohol cannot be produced
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Q340
Open questionPencillin, an antibiotic drug was discovered by
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