Chemistry What is the most commonly used substance in fluorescent tubes? Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The third shell of an atom can have a maximum of ______ electrons 21 15 13 18 21 15 13 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The function of skimming tank in sewage treatment is to remove Inorganic substances Suspended solids Gritty substances Oil and fatty substances Inorganic substances Suspended solids Gritty substances Oil and fatty substances ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver nitrate solution is kept in brown bottles in laboratory because It reacts with ordinary white bottles Brown bottles react with it Brown bottles stops the passage of light through it Brown bottles do not react with it It reacts with ordinary white bottles Brown bottles react with it Brown bottles stops the passage of light through it Brown bottles do not react with it ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water cycle refers to Constant movement of water from ocean to land and back to ocean once again An integrated attempt to recycle water in relatively arid regions Scientific management of water in areas excessively plagued with water-logging Water distribution in relatively dry areas Constant movement of water from ocean to land and back to ocean once again An integrated attempt to recycle water in relatively arid regions Scientific management of water in areas excessively plagued with water-logging Water distribution in relatively dry areas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a sublime substance? Potassium Iodide Table salt Iodine Sugar Potassium Iodide Table salt Iodine Sugar ANSWER DOWNLOAD EXAMIANS APP
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