Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 B and c A and b A and c C and d B and c A and b A and c C and d ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? Hydrogen Oxygen Nitrogen Helium Hydrogen Oxygen Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? Os Pb W Pt Os Pb W Pt ANSWER DOWNLOAD EXAMIANS APP
Chemistry Removal of carbon particles from air involves the principle of Electrophoresis Filteration Sedimentation Precipitation Electrophoresis Filteration Sedimentation Precipitation ANSWER DOWNLOAD EXAMIANS APP
Chemistry ‘Aerosol’ is known as Green house gas present in air Pollutant gas, present in air Suspended solid particles in air Microbes, present in air Green house gas present in air Pollutant gas, present in air Suspended solid particles in air Microbes, present in air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Ozone Hydrogen peroxide Barium peroxide Sodium peroxide Ozone Hydrogen peroxide Barium peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
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