Chemistry The gas used for filling weather balloons is Helium Nitrogen Hydrogen Air Helium Nitrogen Hydrogen Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Conc. HCl and conc. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl Dil. HCl and dil. HNO3 Conc. HCl and conc. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl Dil. HCl and dil. HNO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two electrons in an orbital are differentiated by which of the following ? Spin quantum number Magnetic quantum number Azimuthal quantum number Principal quantum number Spin quantum number Magnetic quantum number Azimuthal quantum number Principal quantum number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals form an amalgam with other metals ? Mercury Tin Lead Zinc Mercury Tin Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Kinetics is the study of: How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products All of these are correct The rate of chemical reaction How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products All of these are correct The rate of chemical reaction 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? 1/3 1/8 1/4 1/6 1/3 1/8 1/4 1/6 ANSWER DOWNLOAD EXAMIANS APP
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