Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Hydrogen Nitrogen Methane Helium Hydrogen Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is extracted from sea water? Beryllium Potassium Magnesium Aluminium Beryllium Potassium Magnesium Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases will effuse out of football bladder most quickly ? O2 H2 He N 2 O2 H2 He N 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical properties of isotopes Need not be different Must be different Need not be same Must be same Need not be different Must be different Need not be same Must be same ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of fire extinguisher is used for petroleum fire ? Powder type None of these Foam type Soda acid type Powder type None of these Foam type Soda acid type ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is made hard with Dissociation of water Polymerisation Dehydration Hydration and dissociation of water Dissociation of water Polymerisation Dehydration Hydration and dissociation of water ANSWER DOWNLOAD EXAMIANS APP
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