Chemistry Burning pyrites ore gives out Nitrogen dioxide gas Sulphur dioxide gas Carbon dioxide gas Nitric oxide gas Nitrogen dioxide gas Sulphur dioxide gas Carbon dioxide gas Nitric oxide gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanised iron is made by coating iron with Nickel Sulphur Zinc Chromium Nickel Sulphur Zinc Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Slag is a name given for Molten calcium silicate Molten iron Molten alumina Molten sand Molten calcium silicate Molten iron Molten alumina Molten sand ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder is an alloy of Sodium, lead Lead, zinc Tin, lead Copper, lead Sodium, lead Lead, zinc Tin, lead Copper, lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Lead and tin Lead and antimony Copper and tin Copper and zinc Lead and tin Lead and antimony Copper and tin Copper and zinc ANSWER DOWNLOAD EXAMIANS APP