Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Sulphur dioxide Nitrous oxide Chlorofluorocarbon Carbon dioxide Sulphur dioxide Nitrous oxide Chlorofluorocarbon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Bhopal gas tragedy' 1984 is related to which gas Carbon dioxide Methyl isocyanate Aluminium Phosphide Methyl bromide Carbon dioxide Methyl isocyanate Aluminium Phosphide Methyl bromide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which fails to liberate carbon dioxide from sodium bicarbonate is : Sulphuric acid Formic acid Carbonic acid Acetic acid Sulphuric acid Formic acid Carbonic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lightest gas which is non-inflammable is Helium Oxygen Nitrogen Hydrogen Helium Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 314 88 138 50 314 88 138 50 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because They contain free electrons They contain reflecting surface The molecules in them are very close to each other The molecules in them collide very freely They contain free electrons They contain reflecting surface The molecules in them are very close to each other The molecules in them collide very freely ANSWER DOWNLOAD EXAMIANS APP
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