Q541
Open questionWhich one of the following is not a characteristic feature of alloys?
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Q542
Open questionGalena is a mineral of
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Q543
Open questionThe iron ore which contains 72% of iron is :
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Q544
Open questionBauxite is an alloy of which of the following metals ?
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Q545
Open questionHard steel contains
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Q546
Open questionThe purest form of Iron is :
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Q547
Open questionWhich one of the following contains maximum percentage of carbon ?
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Q548
Open questionStainless steel is an alloy of
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Q549
Open questionIron is extracted from
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Q550
Open questionWhich is the purest form of iron?
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Q551
Open questionWhich one of the following mineral does not contain oxygen ?
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Q552
Open questionWhich mineral is the ore of aluminium ?
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Q553
Open questionWhich of the following is a metallic ore ?
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Q554
Open questionMagnalium is an alloy of
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Q555
Open questionMagnetite is
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Q556
Open questionIn which of the following states maximum iron ore is found ?
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Q557
Open questionFood cans are coated with tin and not with zinc because
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Q558
Open questionCinnabar is an ore/mineral of
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Q559
Open questionThe percentage of carbon in cast iron is :
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Q560
Open questionBrass is a solution of molten copper in
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