Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Argon Oxygen Krypton Nitrogen Argon Oxygen Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? None of these Aluminium sulphate Solder Aluminium powder None of these Aluminium sulphate Solder Aluminium powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following organic compounds has fruity smell? Ester Aldehyde Alcohol Ether Ester Aldehyde Alcohol Ether ANSWER DOWNLOAD EXAMIANS APP
Chemistry The basic chemical building block of natural rubber obtained from trees is Isoprene Acetylene Neoprene Vinyl Chloride Isoprene Acetylene Neoprene Vinyl Chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following chemicals helps in fruit ripening? Malathion Atrazine Isoproturan Ethephon Malathion Atrazine Isoproturan Ethephon 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 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 The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
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