Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19 36 17 53 19 36 17 53 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the simplest aromatic hydrocarbon Benzene Aspirin Chloride Picric acid Benzene Aspirin Chloride Picric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Silicon Magnesium Sulphur Phosphorous Silicon Magnesium Sulphur Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Nitrous oxide, Chloroform Chloroform, Nitrogen dioxide Nitrogen dioxide, ether Ether, Ammonia Nitrous oxide, Chloroform Chloroform, Nitrogen dioxide Nitrogen dioxide, ether Ether, Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is most acidic Al22O3 MgO CaO Na2O Al22O3 MgO CaO Na2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 ANSWER DOWNLOAD EXAMIANS APP
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