Chemistry The coloured discharge tubes for advertisement mainly contain Argon Helium Xenon Neon Argon Helium Xenon Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Baking soda is : Sodium carbonate Potassium carbonate Sodium hydroxide Sodium bicarbonate Sodium carbonate Potassium carbonate Sodium hydroxide Sodium bicarbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Barium peroxide Ozone Hydrogen peroxide Sodium peroxide Barium peroxide Ozone Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning Petrol is too inflammable to be extinguished by water The heat required for combustion of petrol is very low Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning Petrol is too inflammable to be extinguished by water The heat required for combustion of petrol is very low ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo chemical smog is a resultant of the reaction among NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, O2 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature High concentration of NO2, O3, and CO in the evening NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, O2 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature High concentration of NO2, O3, and CO in the evening ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is an iron ore ? Magnetite Nitrite Lignite Bauxite Magnetite Nitrite Lignite Bauxite ANSWER DOWNLOAD EXAMIANS APP
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