Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Aluminium powder Solder None of these Aluminium sulphate Aluminium powder Solder None of these Aluminium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the chemical name for ‘Baking Soda’ ? Sodium bicarbonate Sodium carbonate Sodium nitrite Sodium nitrate Sodium bicarbonate Sodium carbonate Sodium nitrite Sodium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Nitrogen dioxide Coloured impurities Oxygen Nitrous oxide Nitrogen dioxide Coloured impurities Oxygen Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure Barium Lead Bromine Magnesium Barium Lead Bromine Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the simplest form of alkane Propane Butane Methane Decane Propane Butane Methane Decane ANSWER DOWNLOAD EXAMIANS APP
Chemistry An oxidising agent is a An electron donor It releases H2 in a chemical reaction In a chemical reaction its oxidation number increases An electron acceptor An electron donor It releases H2 in a chemical reaction In a chemical reaction its oxidation number increases An electron acceptor ANSWER DOWNLOAD EXAMIANS APP
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