Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More stable More abundant than hydrogen Lighter than hydrogen Non-combustible More stable More abundant than hydrogen Lighter than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Interveinal necrotic spots on leaves appear due to SO2injury O3injury HF injury NO2injury SO2injury O3injury HF injury NO2injury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cyanide poisoning causes death in seconds because It causes cardiac arrest It denatures enzymes of the heart/muscle It causes Lysis of red blood cells It breaks the electron transport chain It causes cardiac arrest It denatures enzymes of the heart/muscle It causes Lysis of red blood cells It breaks the electron transport chain ANSWER DOWNLOAD EXAMIANS APP
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 5x 5x/36 7.2 x x/6 5x 5x/36 7.2 x x/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A solution is A mixture of two liquids A solid dissolved i water A homogeneous mixture of two or more substances A solid dissolved in a liquid A mixture of two liquids A solid dissolved i water A homogeneous mixture of two or more substances A solid dissolved in a liquid ANSWER DOWNLOAD EXAMIANS APP
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