The metallic constituents of hard water are 1 Magnesium, calcium and tin 2 Iron, tin and calcium 3 Calcium, ,magnesium and iron 4 None of these

1 Answers  

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How can i describe the blood?

0 Answers  

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Carbon tetrachloride fire extinguisher should not be used in closed rooms, because it produces a poisonous gas called 1 Carbon monoxide 2 Phosphine 3 Phosgene 4 None of these

1 Answers  

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wheather lightning will attack a aeroplane during flying if not why

2 Answers   TCS,

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atoms are composed of Electrons & Protons or Electrons & Protons ?

3 Answers  

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A mixture of salt and sand can be separated by 1 Sublimation 2 Dissolving in water 3 Gravity separation 4 Dry distillation

3 Answers   CISF,

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Brass is an alloy of 1 Nickel and copper 2 Zinc and copper 3 Nickel and zinc 4 Nickel and silver

1 Answers  

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'which country has 6 months night and 6 months day'

78 Answers   Asefa, Goal Technologies, IHCL, Karibu, ONGC, TATA, UET,

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What are nebulae?

0 Answers  

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Chemical change does not take place in case of 1 Souring of milk into curd 2 Rusting of iron in atmosphere 3 Burning of magnesium ribbon in air 4 emitting of light by a red hot platinum wire

3 Answers   Banking, Eastern Railway,

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In which type of rocks re metals like gold and copper mostly found? 1 Old igneous 2 Old sedimentary 3 Old metamorphic 4 New metamorphic

3 Answers  

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The major constituents of Portland cement include 1 Lime, silica and iron oxide 2 Lime, silica and magnesia 3 Silica, alumina and magnesia 4 Lime, silica and alumina

1 Answers  

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