Chemistry In an oxygen molecule, two atoms are united by Four bonds Two bonds Three bonds One bond Four bonds Two bonds Three bonds One bond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The low ionisation energy of sodium The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Carbon dioxide Nitrous oxide Chlorofluorocarbon Sulphur dioxide Carbon dioxide Nitrous oxide Chlorofluorocarbon Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tar roads get damaged if there is Stagnation of water on road Heavy traffic No sloping No maintenance Stagnation of water on road Heavy traffic No sloping No maintenance ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Greenhouse effect Fire in coal mines Dry farming Trade winds Greenhouse effect Fire in coal mines Dry farming Trade winds ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as best adsorbent? Activated Charcoal Activated Coconut Charcoal Charcoal Carbon black Activated Charcoal Activated Coconut Charcoal Charcoal Carbon black ANSWER DOWNLOAD EXAMIANS APP
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