Chemistry Commercial nitric acid is coloured because it contains dissolved : Coloured impurities Nitrogen dioxide Oxygen Nitrous oxide Coloured impurities Nitrogen dioxide Oxygen Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 12 Zero 18 6 12 Zero 18 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Ethane Methane Nitrogen All of these Ethane Methane Nitrogen All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove ink and rust stains on cloth? Alcohol Kerosene oil Oxalic acid Ether Alcohol Kerosene oil Oxalic acid Ether ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fibres catches fire least ? Rayon Nylon Cotton Terricot Rayon Nylon Cotton Terricot ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common name for the compound having formal NaOH is Sodium hydroxide Caustic soda Caustic potash Soda ash Sodium hydroxide Caustic soda Caustic potash Soda ash ANSWER DOWNLOAD EXAMIANS APP
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