Chemistry The lightest gas which is non-inflammable is Hydrogen Nitrogen Oxygen Helium Hydrogen Nitrogen Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas emitted by power stations causes acid rain? Sulphur dioxide Nitrogen Helium Carbon dioxide Sulphur dioxide Nitrogen Helium Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Extensively used nitrogenous fertilizer is Urea Ammonium sulphate Ammonium nitrate Nitro-lime Urea Ammonium sulphate Ammonium nitrate Nitro-lime ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH scale ranges from 8 – 14 None 0 – 7 0 – 14 8 – 14 None 0 – 7 0 – 14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The octane number of zero is assigned to n-heptane 2-methyl octane 3-methyl octane iso-octane n-heptane 2-methyl octane 3-methyl octane iso-octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Sulphur dioxide Nitrogen dioxide Carbon monoxide Methane Sulphur dioxide Nitrogen dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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