Chemistry Which one is the purest form of carbon Iron Graphite Diamond Coal Iron Graphite Diamond Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? There is a crackling sound There is a violent explosion. There is no reaction. The paper ignites There is a crackling sound There is a violent explosion. There is no reaction. The paper ignites ANSWER DOWNLOAD EXAMIANS APP
Chemistry The green colour seen in firework displays is due to the chloride salt of : Calcium Sodium Barium Strontium Calcium Sodium Barium Strontium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Nitrogen Methane Carbon dioxide Chlorofluorocarbons Nitrogen Methane Carbon dioxide Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galena is a mineral of Gold Iron Lead Calcium Gold Iron Lead Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 5x 5x/36 7.2 x x/6 5x 5x/36 7.2 x x/6 ANSWER DOWNLOAD EXAMIANS APP