Chemistry Of the following, which one pollutes the air of a big city ? Chromium Cadmium Lead Copper Chromium Cadmium Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Nitrogen Sodium Hydrogen Neon Nitrogen Sodium Hydrogen Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/3 1/6 1/8 1/4 1/3 1/6 1/8 1/4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Many people died in London in 1952 as result of air pollution producing Smog Sleet Fog Mist Smog Sleet Fog Mist ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element from below list is liquid at room temperature Bromine Argon Zinc Lead Bromine Argon Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the covalency of nitrogen in ammonia molecule 2 5 4 3 2 5 4 3 ANSWER DOWNLOAD EXAMIANS APP
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