Wood is the main raw material for the manufacture of
1 Paint
2 Paper
3 Ink
4 Gun powder
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The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray
Which scientists gave detailed information about nebula?
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
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What was the code name given to the first explosion?
what are disadvantages of interrupt and exception?
Which synthetic fiber possesses a ‘drip-dry’ property? 1 Rayon 2 Nylon 3 Silk 4 Terylene
plants in a food chain are actually the
2 Answers Competitive Exams, Stenographer,
What are soaps? 1 Salts of silicates 2 Esters of heavy fatty acids 3 Sodium or potassium salts of heavier fatty acids 4 Mixture of glycerol and alcohols
Who invented telescope?
Which of the following metals react with nitrogen at room temperature to form nitride? 1 Sodium 2 Potassium 3 Magnesium 4 None of these
Biological Sciences 
