Chemistry Sodium vapour lamps glow with yellow colour. This is due to sublimation of sodium to emit yellow colour 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 The low ionisation energy of sodium sublimation of sodium to emit yellow colour 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 The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Colour imparted to the Bunsen flame by strontium salt is Bluish green Crimson red Brick red Apple-green Bluish green Crimson red Brick red Apple-green ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of Avogadro Number is 6.023 × 1023 6.023 × 1022 6.023 × 1024 6.023 × 1025 6.023 × 1023 6.023 × 1022 6.023 × 1024 6.023 × 1025 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following organic compound is used to remove stains of iron compounds? Phthalic acid Oxalic acid Cinnamic acid Benzoic acid Phthalic acid Oxalic acid Cinnamic acid Benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of neutrons in the nucleus The number of protons in its nucleus The number of electrons orbiting around the nucleus The number of nucleons in the nucleus The number of neutrons in the nucleus The number of protons in its nucleus The number of electrons orbiting around the nucleus The number of nucleons in the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following could be used as fuel in propellant or rockets ? Liquid Hydrogen + Liquid Oxygen Liquid Hydrogen + Liquid Nitrogen Liquid Oxygen + Liquid Argon Liquid Nitrogen + Liquid Oxygen Liquid Hydrogen + Liquid Oxygen Liquid Hydrogen + Liquid Nitrogen Liquid Oxygen + Liquid Argon Liquid Nitrogen + Liquid Oxygen ANSWER DOWNLOAD EXAMIANS APP
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