Chemistry Spontaneous change is one in there is: An increase in Internal energy A lowering of free energy Increase in free energy A lowering of entropy An increase in Internal energy A lowering of free energy Increase in free energy A lowering of entropy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because The molecules in them collide very freely They contain reflecting surface They contain free electrons The molecules in them are very close to each other The molecules in them collide very freely They contain reflecting surface They contain free electrons The molecules in them are very close to each other ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Volta Alfred Nobel Faraday Bohr and Rutherford Volta Alfred Nobel Faraday Bohr and Rutherford ANSWER DOWNLOAD EXAMIANS APP
Chemistry The filter over which sewage is sprinkled is called as Contact bed Trickling filter Intermittent sand filter Percolating filter Contact bed Trickling filter Intermittent sand filter Percolating filter ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to ?-rays X-rays Positive rays ? and ? rays ?-rays X-rays Positive rays ? and ? rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Oxygen Carbon monoxide Ozone Carbon dioxide Oxygen Carbon monoxide Ozone Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP