Chemistry Which of the following is not a chemical reaction'? Burning of paper Burning of coal Conversion of water into steam Digestion of food Burning of paper Burning of coal Conversion of water into steam Digestion of food ANSWER DOWNLOAD EXAMIANS APP
Chemistry The noble gas used in radiotherapy is Argon Xenon Neon Radon Argon Xenon Neon Radon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Greenhouse effect Fire in coal mines Trade winds Dry farming Greenhouse effect Fire in coal mines Trade winds Dry farming ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a natural dye ? Phenolphthalein Crystal violet Aniline blue Alizarin Phenolphthalein Crystal violet Aniline blue Alizarin ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Double sulphates Hydrated chlorides Nitrates of aluminium Double nitrate Double sulphates Hydrated chlorides Nitrates of aluminium Double nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Baking soda is : Potassium carbonate Sodium carbonate Sodium hydroxide Sodium bicarbonate Potassium carbonate Sodium carbonate Sodium hydroxide Sodium bicarbonate ANSWER DOWNLOAD EXAMIANS APP
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