Chemistry Liquid Nitrogen boils at 54 kelvin 77 kelvin 82 Kelvin 97 Kelvin 54 kelvin 77 kelvin 82 Kelvin 97 Kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Chalk and graphite Limestone and clay Clay and graphite Limestone and graphite Chalk and graphite Limestone and clay Clay and graphite Limestone and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level High nuclear charge Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level High nuclear charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Nitrates of aluminium Hydrated chlorides Double nitrate Double sulphates Nitrates of aluminium Hydrated chlorides Double nitrate Double sulphates ANSWER DOWNLOAD EXAMIANS APP
Chemistry The tip of the match-stick contains Red phosphorus Phosphorus trichloride Phosphorus pentoxide White phosphorus Red phosphorus Phosphorus trichloride Phosphorus pentoxide White phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a spoon is to be electroplated with nickel the spoon is Made anode and a pure nickel rod, the cathode Coated with nickel sulphate and dried Made cathode and a pure nickel red, the anode Dipped in a nickel sulphate solution Made anode and a pure nickel rod, the cathode Coated with nickel sulphate and dried Made cathode and a pure nickel red, the anode Dipped in a nickel sulphate solution ANSWER DOWNLOAD EXAMIANS APP
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