Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 –4 Zero 4 8 –4 Zero 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Sodium Graphite Phosphorus Silicon Sodium Graphite Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bee sting contains An alkaline liquid A corrosive liquid A salt solution An acidic liquid An alkaline liquid A corrosive liquid A salt solution An acidic liquid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure Barium Magnesium Bromine Lead Barium Magnesium Bromine Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The temperature of oxy-acetylene flame is around 3600°C 2800°C 4000°C 3200°C 3600°C 2800°C 4000°C 3200°C ANSWER DOWNLOAD EXAMIANS APP