Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Aluminium Copper Zinc Silver Aluminium Copper Zinc Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is most stable at room temperature N2 F2 O2 H2 N2 F2 O2 H2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used as fire extinguisher ? Carbon dioxide Carbon monoxide Carbon suboxide Sulphur dioxide Carbon dioxide Carbon monoxide Carbon suboxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Activation energy Free energy Threshold energy Internal energy Activation energy Free energy Threshold energy Internal energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry The structure of NaCl crystal is Body centered cubic Face centered cubic Square planar Octahedral Body centered cubic Face centered cubic Square planar Octahedral ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Copper and tin Lead and antimony Copper and zinc Lead and tin Copper and tin Lead and antimony Copper and zinc Lead and tin ANSWER DOWNLOAD EXAMIANS APP
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