Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Iron Silicon and Aluminium Oxygen and Iron Oxygen and Silicon Silicon and Iron Silicon and Aluminium Oxygen and Iron Oxygen and Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Inert gases are Chemically unreactive Chemically very active Not stable Miscible with water Chemically unreactive Chemically very active Not stable Miscible with water ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 36 53 17 19 36 53 17 19 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Methane Hydrogen Nitrogen Helium Methane Hydrogen Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Select the one which is not a mixture : LPG Gasoline Air Distilled water LPG Gasoline Air Distilled water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of naturally occurring elements 92 62 98 110 92 62 98 110 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS