Chemistry The term 'brown air' is used for Industrial smog Acid fumes Sulphurous smog Photochemical smog Industrial smog Acid fumes Sulphurous smog Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which fails to liberate carbon dioxide from sodium bicarbonate is : Sulphuric acid Formic acid Acetic acid Carbonic acid Sulphuric acid Formic acid Acetic acid Carbonic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one out of the following helps in burning ? Nitrogen Oxygen Carbon monoxide Carbon dioxide Nitrogen Oxygen Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Transistors Solar energy devices All of these Semiconductors Transistors Solar energy devices All of these Semiconductors ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many neutrons are there in 92U238 atom ? 330 146 92 238 330 146 92 238 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Barium peroxide Ozone Hydrogen peroxide Sodium peroxide Barium peroxide Ozone Hydrogen peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
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