Chemistry Sulphur dioxide bleaches colouring matter by : Decomposition Oxidation Reduction Dehydration Decomposition Oxidation Reduction Dehydration 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 7.2 x 5x x/6 5x/36 7.2 x 5x x/6 5x/36 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a Carbonyl group a carbon atom makes double bond with Oxygen Hydrogen None of these Carbon Oxygen Hydrogen None of these Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as a sowing agent in the preparation of soft drinks? Phosphorus acid Salicylic acid Boric acid Phosphoric acid Phosphorus acid Salicylic acid Boric acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Ethylene glycol Gaseous formaldehyde Formaldehyde in methanol Formaldehyde in water Ethylene glycol Gaseous formaldehyde Formaldehyde in methanol Formaldehyde in water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water is saltier than rain water because Rivers wash away salts from earth and pour them into the sea Sea animals are salt producing Sea beds have salt producing mines The air around the sea is saltish Rivers wash away salts from earth and pour them into the sea Sea animals are salt producing Sea beds have salt producing mines The air around the sea is saltish ANSWER DOWNLOAD EXAMIANS APP