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/36 x/6 5x 7.2 x 5x/36 x/6 5x ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap is prepared by boiling caustic soda with Glycerine Kerosene oil Fats Alcohol Glycerine Kerosene oil Fats Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Carbon dioxide Water vapour Ozone Carbon monoxide Carbon dioxide Water vapour Ozone Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pH of human blood is between : 44052 4.5-5 7.5-8 6.5-7 44052 4.5-5 7.5-8 6.5-7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and O3 Oxides of N and S O2 and N2 O3 and N2 O2 and O3 Oxides of N and S O2 and N2 O3 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer SO2 layer O 2 layer CO2 layer O3 layer SO2 layer O 2 layer CO2 layer ANSWER DOWNLOAD EXAMIANS APP