Chemistry The chief source of naphthalene is Coal-tar Charcoal Camphor Diesel Coal-tar Charcoal Camphor Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Aluminium Tin Iron Copper Aluminium Tin Iron Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Hydrogen peroxide Saltpetre Sodium chloride Borax Hydrogen peroxide Saltpetre Sodium chloride Borax ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The increasing abundance of green house gases in atmosphere has led to the following effect except Global warming Depletion of ozone layer in the stratosphere Oxygen fertilization effect Carbon dioxide ferilization effect Global warming Depletion of ozone layer in the stratosphere Oxygen fertilization effect Carbon dioxide ferilization effect ANSWER DOWNLOAD EXAMIANS APP
Chemistry In arc welding, Argon is used because of its High calorific value Low reactivity with metal Ability to lower the melting point of the metal High flammability High calorific value Low reactivity with metal Ability to lower the melting point of the metal High flammability ANSWER DOWNLOAD EXAMIANS APP
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