In which year was the meteorology department founded?
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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
The dark lines in the solar spectrum are due to 1 Absorption of corresponding wavelengths by the prism used in he spectrograph 2 Destructive interference between waves of certain definite wavelengths 3 Absorption of corresponding wavelengths by the outer layers of the sun 4 None of these
Which of the following was to be discovered first in the chromo sphere of the sun? 1 Xenon 2 Helium 3 Neon 4 Krypton
Which of the following fibers is least prone to fire? 1 Rayon 2 Nylon 3 Cotton 4 Terycott
Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen
Chemical formula for water glass is 1 Na2Sio3 2 Al2O3 3 NaA1O2 4 CaSiO3
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Which of the following is not an isotope of hydrogen? 1 Protium 2 Yitrium 3 Deuterium 4 Tritium
What is length and weight of arihant?
Explain the Evolution of Science as a discipline in the Medieval Period
0 Answers Mahatma Gandhi University,
Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
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