Chemistry The metal used to recover copper from a solution of copper sulphate is Na Fe Ag Hg Na Fe Ag Hg ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the product formed when sodium bicarbonate is heated strongly? Sodium Carbonate Sodium Monoxide Sodium Hydroxide Sodium Peroxide Sodium Carbonate Sodium Monoxide Sodium Hydroxide Sodium Peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alkali metals has highest specific heat? Rubidium Caesium Potassium Lithium Rubidium Caesium Potassium Lithium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Methane Carbon monoxide Carbon di-oxide Ethane Methane Carbon monoxide Carbon di-oxide Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Iron Aluminium Zinc Copper Iron Aluminium Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 12 gms 1.2 gms 120 gms 0.12 gms 12 gms 1.2 gms 120 gms 0.12 gms ANSWER DOWNLOAD EXAMIANS APP