Chemistry The chief constituent of natural gas is: Helium Methane Propane Nitrogen Helium Methane Propane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number but different atomic masses Different atomic numbers and the same atomic mass Different atomic numbers and different atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass Different atomic numbers and different atomic mass The same atomic number and the atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compounds formed when hydrogen combines with p-block elements are called Polynuclear hydrides Metallic hydrides Ionic hydrides Molecular hydrides Polynuclear hydrides Metallic hydrides Ionic hydrides Molecular hydrides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Carbon monoxide Nitrous oxide and sulphur dioxide Carbon dioxide Methane Carbon monoxide Nitrous oxide and sulphur dioxide Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Saline soil contains High concentration of salt None of these Hard rocks Lot of moisture High concentration of salt None of these Hard rocks Lot of moisture ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Hydrogen cyanide Mustard gas Water gas Carbon monoxide Hydrogen cyanide Mustard gas Water gas Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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