Chemistry The lightest gas which is non-inflammable is Hydrogen Nitrogen Oxygen Helium Hydrogen Nitrogen Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/8 1/4 1/3 1/6 1/8 1/4 1/3 1/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following statements are correct about chloroform? a. Liquid fuel b. Anaesthetic in nature c. Produces phosgene d. Fire extinguisher A, b B, c D, a A, c A, b B, c D, a A, c ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hottest part of the gas flame is known as blue zone dark zone luminous zone non-luminous zone blue zone dark zone luminous zone non-luminous zone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table Henry Moseley John Dalton Dmitri Mendeleev Julius Lothar Meyer Henry Moseley John Dalton Dmitri Mendeleev Julius Lothar Meyer ANSWER DOWNLOAD EXAMIANS APP