Q641
Open questionUse of water having dissolved oxygen in boilers promotes
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Q642
Open questionChrome tanning and vegetable tanning are done for
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Q643
Open questionRefractory bricks burnt at very high temperature have got
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Q644
Open questionViscose rayon . . . . . . . .
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Q645
Open questionViscose rayon is
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Q646
Open questionViscose rayon is chemically
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Q647
Open questionVulcanisation of rubber
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Q648
Open questionThe biochemical treatment applied to sewage effluents is a process of
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Q649
Open questionWashing of coal is done to
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Q650
Open questionWax is a
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Q651
Open questionMolecular weight of plastics ranges from
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Q652
Open questionWhich is a high grade pulp?
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Q653
Open questionHigher vicosity index of a lubricating oil denotes
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Q654
Open questionAcetone is produced by catalytic dehydrogenation of
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Q655
Open questionHighly porous refractory bricks are
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Q656
Open question__________ is produced by the dehydrogenation of ethyl benzene.
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Q657
Open questionFluorescent dyes are added in detergents to
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Q658
Open questionAlkylbenzene sulfonate (ABS) is a
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Q659
Open questionWet chlorine gas produced during electrolysis of brine is dehydrated by
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Q660
Open questionThe catalyst used in shift converter is
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