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(2) Arsenious oxide

Permanent hardness of water may be removed by the addition of 1 Alum 2 Sodium carbonate 3 Lime 4 Potassium permanganate

3 Answers   SSC,

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When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these

1 Answers  

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Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume

1 Answers  

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Which unit is used to measure sound frequency?

4 Answers  

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What are all of the uses for a dynamo?

1 Answers  

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What is blood ? Describe its functions in the human body ?

8 Answers  

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Among the various allogropes of carbon 1 Diamond is the hardest, lamp black is the softest 2 Diamond is the hardest, coke is the softest 3 Coke is the hardest, graphite is the softest 4 Diamond is the hardest, graphite is the softest

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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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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Deep blue color is imparted to glass by the presence of 1 Iron oxide 2 Cupric oxide 3 Nickel oxide 4 Cobalt oxide

2 Answers  

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Which of the following substances exhibit the property of sublimation? 1 Ice 2 Wax 3 Camphor 4 Ethyl alcohol

1 Answers   Prerana,

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example for navigation satellite?

1 Answers   ISRO, MPPGENCO,

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