Chemistry Concentration of a material which is lethal to 50% animal is called LD50 ADI LC50 NOAEL LD50 ADI LC50 NOAEL ANSWER DOWNLOAD EXAMIANS APP
Chemistry The monomer of polythene is vinyl chloride ethyl alcohol ethylene None of these vinyl chloride ethyl alcohol ethylene None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid used in lead storage cells is Sulphuric acid Phosphoric acid Hydrochloric acid Nitric acid Sulphuric acid Phosphoric acid Hydrochloric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The low ionisation energy of sodium The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of Avogadro Number is 6.023 × 1023 6.023 × 1022 6.023 × 1025 6.023 × 1024 6.023 × 1023 6.023 × 1022 6.023 × 1025 6.023 × 1024 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is made hard with Polymerisation Dissociation of water Dehydration Hydration and dissociation of water Polymerisation Dissociation of water Dehydration Hydration and dissociation of water ANSWER DOWNLOAD EXAMIANS APP
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