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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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Which of the following is used for removing air bubbles from glass during its manufacture? 1 Feldspar 2 Arsenious oxide 3 Potassium carbonate 4 Soda ash

1 Answers  

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The two elements that are frequently used for making transistors are 1 Boron and aluminium 2 Silicon and germanium 3 Iridium and tungsten 4 Niobium and columbium

2 Answers  

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Using an applied force of a Newton across one meter is known as a:

4 Answers  

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Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon

1 Answers  

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The neutral atom’s two isotopes differ in the number of 1 Electron shells 2 Protons 3 Valence electrons 4 Neutrons

1 Answers  

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Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO

1 Answers  

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Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton

1 Answers  

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Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper

3 Answers  

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where the 3rd earthsummit held

3 Answers   Infosys,

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

8 Answers  

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The Contact Process is involved in the manufacture of 1 Nitric acid 2 Sulphuric acid 3 Ammonia 4 Caustic soda

2 Answers  

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