Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Hot dipping Electroplating Galvanising Tinning Hot dipping Electroplating Galvanising Tinning 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 Its ability to absorb all other colours except yellow The low ionisation energy of sodium sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Its ability to absorb all other colours except yellow The low ionisation energy of sodium sublimation of sodium to emit yellow colour ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Hydrogen Nitrogen Air Helium Hydrogen Nitrogen Air Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Neon Argon Nitrogen Helium Neon Argon Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water gas is the mixture of Carbon dioxide and nitrogen Carbon monoxide and hydrogen Carbon monoxide and nitrogen Carbon dioxide and hydrogen Carbon dioxide and nitrogen Carbon monoxide and hydrogen Carbon monoxide and nitrogen Carbon dioxide and hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The “King of Metals” is : Silver Gold Aluminium Iron Silver Gold Aluminium Iron ANSWER DOWNLOAD EXAMIANS APP
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