Chemistry Atoms of same element having different mass numbers are called________ Isobars Isomers Isotones Isotopes Isobars Isomers Isotones Isotopes ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lightest gas which is non-inflammable is Hydrogen Helium Nitrogen Oxygen Hydrogen Helium Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Methane Carbon di-oxide Ethane Carbon monoxide Methane Carbon di-oxide Ethane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electronegative element among the following is sodium bromine fluorine oxygen sodium bromine fluorine oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Carbon dioxide and Nitrogen Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Carbon dioxide and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Alum is used as A disinfectant An analgesic A fertilizer A purifier for water A disinfectant An analgesic A fertilizer A purifier for water ANSWER DOWNLOAD EXAMIANS APP
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