Which of the following gases is lighter than air? 1 Carbon dioxide 2 Oxygen 3 Ammonia 4 Chlorine

5 Answers  

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In a fast breeder reactor, U-238 gets converted to 1 U-235 2 U-237 3 Co-60 4 Plutonium-239

1 Answers  

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Ozone attacks 1 Mercury and silver 2 Copper 3 Silver and iron 4 None of these

2 Answers  

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the river tigris in which city

1 Answers  

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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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What is the significance of international geo - physical year?

0 Answers  

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Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes

3 Answers   Sri Chaitanya,

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In an atomic explosion, enormous energy is released which is due to the 1 Conversion of neutrons into protons 2 Conversion of chemical energy into nuclear energy 3 Conversion of mass into energy 4 None of these

2 Answers   AHH, CMRL,

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What is the wavelength of visible spectrum? 1 1300A-3000A 2 3900A-7600A 3 7800A-8000A 4 8500A-9800A

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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Optic fibers are mainly used for which of the following? 1 Communication 2 Weaving 3 Musical instruments 4 Eye surgery

1 Answers  

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Of the following metals which, one pollutes the air of a big city? 1 Copper 2 Chromium 3 Lead 4 Cadmium

3 Answers   HCL, High Court, SSC,

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