Chemistry The most abundant element in the earth’s atmosphere is Krypton Oxygen Nitrogen Argon Krypton Oxygen Nitrogen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is an aqueous solution of Citric acid Acetic acid Hydrochloric acid Oxalic acid Citric acid Acetic acid Hydrochloric acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is Zero 8 –4 4 Zero 8 –4 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ gives hardness to stainless steel. Carbon Zinc Lead Tin Carbon Zinc Lead Tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Oxygen Coloured impurities Nitrous oxide Nitrogen dioxide Oxygen Coloured impurities Nitrous oxide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium bicarbonate is commercially known as Caustic soda Soda lime Washing soda Baking soda Caustic soda Soda lime Washing soda Baking soda ANSWER DOWNLOAD EXAMIANS APP
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