Chemistry Sodium vapour lamps glow with yellow colour. This is due to sublimation of sodium to emit yellow colour The low ionisation energy of sodium 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 sublimation of sodium to emit yellow colour The low ionisation energy of sodium 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contains maximum percentage of carbon ? Cast iron Wrought iron High speed steel Stainless steel Cast iron Wrought iron High speed steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry In its reaction with silver nitrate, C2H2 shows Acidic property Oxidising property Reducing property Basic property Acidic property Oxidising property Reducing property Basic property ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alloy is used in making magnet ? Duralumin Alnico Magnalium Stainless steel Duralumin Alnico Magnalium Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Methanoic and ethanoic acids can be distinguished by the action of NaHCO3 Tollen's reagent NaOH SOCl2 NaHCO3 Tollen's reagent NaOH SOCl2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Yellow Cake' an item of smuggling across border is A crude from of cocaine A crude from of heroin Unreformed gold Uranium oxide A crude from of cocaine A crude from of heroin Unreformed gold Uranium oxide ANSWER DOWNLOAD EXAMIANS APP
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