Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum The low ionisation energy of sodium Its ability to absorb all other colours except yellow sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk is a colloidal system in which: Fat is dissolved Water is dispersed in fat Fat and water are dispersed in each other Fat is dispersed in water Fat is dissolved Water is dispersed in fat Fat and water are dispersed in each other Fat is dispersed in water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The “King of Metals” is : Iron Gold Silver Aluminium Iron Gold Silver Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the process is known as nitrification? Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of ammonia to nitrites Reaction of nitrogen dioxide with water to form nitric acid Conversion of nitrite to nitric oxide Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of ammonia to nitrites Reaction of nitrogen dioxide with water to form nitric acid Conversion of nitrite to nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleons are regarded as composites sub-particles known as Quarks Photons Leptons Mesons Quarks Photons Leptons Mesons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Neutrons Neutrons and protons Protons Electrons Neutrons Neutrons and protons Protons Electrons ANSWER DOWNLOAD EXAMIANS APP
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