Chemistry Which of the following is not a method of preparing oxygen? Decomposition of manganese dioxide Decomposition of potassium permanganate Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate Electrolysis of water Fractional distillation of liquid air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is ________ . Glacial acetic acid Diluted formic acid Glacial formic acid Diluted acetic acid Glacial acetic acid Diluted formic acid Glacial formic acid Diluted acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal compound commonly found in Sindhoor or Kumkum is based on Tin Lead Zinc Copper Tin Lead Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are Dry ice or frozen carbon dioxide Sodium Chloride Silver Iodide All listed here Dry ice or frozen carbon dioxide Sodium Chloride Silver Iodide All listed here ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of g-molecule of oxygen in 6.02 x 1024CO molecules is 1 gram of molecule 0.5 gram of molecule 10 gram of molecule 5 gram of molecule 1 gram of molecule 0.5 gram of molecule 10 gram of molecule 5 gram of molecule ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 6 12 Zero 18 6 12 Zero 18 ANSWER DOWNLOAD EXAMIANS APP
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