Chemistry The most reactive among the halogens is Fluorine Bromine Iodine Chlorine Fluorine Bromine Iodine Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is made of Copper, tin and zinc Copper and tin Tin and lead Copper and zinc Copper, tin and zinc Copper and tin Tin and lead Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Submarines move under water. They have engines that run on Batteries Steam Petrol and oxygen Diesel Batteries Steam Petrol and oxygen Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen is an essential constituent of all : Fats Carbohydrates Proteins Vitamins Fats Carbohydrates Proteins Vitamins ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water can be purified by the process of Fractional distillation Evaporation Filtration Distillation Fractional distillation Evaporation Filtration Distillation ANSWER DOWNLOAD EXAMIANS APP