Chemistry Conversion of chemical energy into electrical energy occurs in Dynamo A battery Electric heaters Atomic bombs Dynamo A battery Electric heaters Atomic bombs ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Acetic acid Tartaric acid Sodium carbonate Sodium salt of benzoic acid Acetic acid Tartaric acid Sodium carbonate Sodium salt of benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The tip of the match-stick contains Red phosphorus White phosphorus Phosphorus trichloride Phosphorus pentoxide Red phosphorus White phosphorus Phosphorus trichloride Phosphorus pentoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Sulphur dioxide Nitrogen dioxide Methane Carbon monoxide Sulphur dioxide Nitrogen dioxide Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a Carbonyl group a carbon atom makes double bond with Oxygen Carbon Hydrogen None of these Oxygen Carbon Hydrogen None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Saltpetre Hydrogen peroxide Sodium chloride Borax Saltpetre Hydrogen peroxide Sodium chloride Borax ANSWER DOWNLOAD EXAMIANS APP
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