Chemistry Which of the following is a man-made source of air pollution ? Automobile exhaust All of these Forest fire Bacterial action in soil and swamp areas Automobile exhaust All of these Forest fire Bacterial action in soil and swamp areas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Burning garbage Coal fire Burning coal Steam engine Burning garbage Coal fire Burning coal Steam engine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals has least melting point ? Mercury Gold Copper Silver Mercury Gold Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? Os Pb Pt W Os Pb Pt W ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is used in storage batteries? Lead Tin Copper Zinc Lead Tin Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using More efficient car engines Low - sulphur fuels Static electricity to attract it in factory chimneys Catalytic converters in industry More efficient car engines Low - sulphur fuels Static electricity to attract it in factory chimneys Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
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