Chemistry Oxygen has (+) oxidation number only in OF2 C12O H2O (2) N2O OF2 C12O H2O (2) N2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as best adsorbent? Charcoal Activated Coconut Charcoal Carbon black Activated Charcoal Charcoal Activated Coconut Charcoal Carbon black Activated Charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following nonmetals shows allotropy in the liquid state? Bromine Phosphorous Sulphur Carbon Bromine Phosphorous Sulphur Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Taj Mahal is greatly affected due to : Acid rain Sound pollution Tourists Deforestation Acid rain Sound pollution Tourists Deforestation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Graphite Sodium Phosphorus Silicon Graphite Sodium Phosphorus ANSWER DOWNLOAD EXAMIANS APP
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