Chemistry The coloured discharge tubes for advertisement mainly contain Helium Argon Neon Xenon Helium Argon Neon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19 53 17 36 19 53 17 36 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Baking soda is : Sodium carbonate Sodium hydroxide Potassium carbonate Sodium bicarbonate Sodium carbonate Sodium hydroxide Potassium carbonate Sodium bicarbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Calcium, Magnesium Sodium, Magnesium Sodium, Calcium Sodium, Potassium Calcium, Magnesium Sodium, Magnesium Sodium, Calcium Sodium, Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first organic compound synthesised in the laboratory was Urea Lactic acid Glucose Uric acid Urea Lactic acid Glucose Uric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Limestone is a raw material used by which industry? Cement Aluminium Fertilizers Petrochemicals Cement Aluminium Fertilizers Petrochemicals ANSWER DOWNLOAD EXAMIANS APP
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