Chemistry The most abundant element in the earth’s atmosphere is Argon Nitrogen Krypton Oxygen Argon Nitrogen Krypton Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Heavy metals Light metals Noble gases Halogens Heavy metals Light metals Noble gases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is found in Vinegar ? Acetic acid Butyric acid Propionic acid Formic acid Acetic acid Butyric acid Propionic acid Formic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Brass Silver Copper Bronze Brass Silver Copper Bronze ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Electroplating Galvanising Hot dipping Tinning Electroplating Galvanising Hot dipping Tinning ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acids serves as an electrolyte in a lead storage battery? Sulphuric acid Lactic acid Hydrochloric acid Nitric acid Sulphuric acid Lactic acid Hydrochloric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
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