Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From brown to orange-red From brown to blue-black From blue to pink From pink to blue-green From brown to orange-red From brown to blue-black From blue to pink From pink to blue-green ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are Silver Iodide Sodium Chloride Dry ice or frozen carbon dioxide All listed here Silver Iodide Sodium Chloride Dry ice or frozen carbon dioxide All listed here ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? Os W Pt Pb Os W Pt Pb ANSWER DOWNLOAD EXAMIANS APP
Chemistry Thermal electricity is generated by using which of these ? Coal only None of these Coal and Natural Gas only Coal, Natural Gas and Petroleum Coal only None of these Coal and Natural Gas only Coal, Natural Gas and Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful Solar infrared radiation CO2 in the air Solar ultraviolet radiation SO2 in the air Solar infrared radiation CO2 in the air Solar ultraviolet radiation SO2 in the air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following chemicals helps in fruit ripening? Malathion Isoproturan Ethephon Atrazine Malathion Isoproturan Ethephon Atrazine ANSWER DOWNLOAD EXAMIANS APP
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