Chemistry Which of the following is not a greenhouse gas ? Hydrogen Nitric oxide Chlorofluorocarbon Carbon dioxide Hydrogen Nitric oxide Chlorofluorocarbon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hottest part of the gas flame is known as dark zone non-luminous zone blue zone luminous zone dark zone non-luminous zone blue zone luminous zone ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Copper Aluminium Silver Zinc Copper Aluminium Silver Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Scum Sewer Sludge Sewage Scum Sewer Sludge Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Burning coal Burning garbage Coal fire Steam engine Burning coal Burning garbage Coal fire Steam engine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium Its ability to absorb all other colours except yellow ANSWER DOWNLOAD EXAMIANS APP
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