Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Zinc Silver Aluminium Copper Zinc Silver Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry For a spontaneous chemical process, the free energy change is Zero Negative Positive Depends on whether the reaction is exothermic or endothermic Zero Negative Positive Depends on whether the reaction is exothermic or endothermic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to emission of which of the following in to the atmosphere ? Carbon monoxide and nitrogen Oxides of nitrogen and sulphur Carbon dioxide and carbon monoxide Ozone and carbon dioxide Carbon monoxide and nitrogen Oxides of nitrogen and sulphur Carbon dioxide and carbon monoxide Ozone and carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Oxygen All of them Carbon dioxide Hydrogen Oxygen All of them Carbon dioxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry If we burn graphite, It will change into diamond No residue will be left It will not burn Residue will be left It will change into diamond No residue will be left It will not burn Residue will be left ANSWER DOWNLOAD EXAMIANS APP
Chemistry The important metal used with iron to produce stainless steel is Chromium Carbon Tin Aluminium Chromium Carbon Tin Aluminium ANSWER DOWNLOAD EXAMIANS APP
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