Chemistry Which one of the following was used as a chemical weapon in the first world war ? Hydrogen cyanide Water gas Carbon monoxide Mustard gas Hydrogen cyanide Water gas Carbon monoxide Mustard gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Sea water Rain water Lake water River water Sea water Rain water Lake water River water ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is used for making vinegar. Malic acid Tartaric acid Acetic acid Oxalic acid Malic acid Tartaric acid Acetic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of nitrogen and phosphorous Oxides of carbon and nitrogen Oxides of nitrogen and sulphur None of these Oxides of nitrogen and phosphorous Oxides of carbon and nitrogen Oxides of nitrogen and sulphur None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is obtained from sea weeds ? Argon Iodine Sulphur Vanadium Argon Iodine Sulphur Vanadium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two elements which can form a large number of compounds are Carbon and Sulphur Carbon and Nitrogen Carbon and Hydrogen Carbon and Oxygen Carbon and Sulphur Carbon and Nitrogen Carbon and Hydrogen Carbon and Oxygen ANSWER DOWNLOAD EXAMIANS APP
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