Chemistry What is the most commonly used substance in fluorescent tubes? Mercury vapour and argon Sodium vapour and neon Sodium oxide and argon Mercury oxide and neon Mercury vapour and argon Sodium vapour and neon Sodium oxide and argon Mercury oxide and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the simplest form of alkane Methane Propane Decane Butane Methane Propane Decane Butane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymerisation of which often following is used in manufacturing of polythene in industry ? Acetylene Ethylene Methane Styrene Acetylene Ethylene Methane Styrene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen has (+) oxidation number only in H2O (2) N2O C12O OF2 H2O (2) N2O C12O OF2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In an oxygen molecule, two atoms are united by Three bonds Two bonds Four bonds One bond Three bonds Two bonds Four bonds One bond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most reactive halogen Bromine Fluorine Chlorine Iodine Bromine Fluorine Chlorine Iodine ANSWER DOWNLOAD EXAMIANS APP
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