Chemistry Helium gas is filled in ballons because Its atomic number is 2 It is a noble gas It is one of the constitutents of water It is lighter than air Its atomic number is 2 It is a noble gas It is one of the constitutents of water It is lighter than air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound to which H2 does not add is Biphenyl ethylene Tetra –9 – phenanthrylethylene Tetra – a –naphthylethylene Tetraphenyl ethylene Biphenyl ethylene Tetra –9 – phenanthrylethylene Tetra – a –naphthylethylene Tetraphenyl ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a man-made source of air pollution ? Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Spirit in contact with body gives cool sensation because it is : Liquid Transparent A good conductor Highly volatile Liquid Transparent A good conductor Highly volatile ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called liquation leaching magnetic separation levigation liquation leaching magnetic separation levigation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The term 'brown air' is used for Acid fumes Industrial smog Photochemical smog Sulphurous smog Acid fumes Industrial smog Photochemical smog Sulphurous smog ANSWER DOWNLOAD EXAMIANS APP
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