Question

GIVE REASON WHY : ( PLEASE HELP, ANSWERS NEEDED URGENTLY ) (i) Gold is found free state but iron is not.(ii) Sodium react with cold water where as iron is does not(iii) Copper cannot replace iron from its salt solution(iv) Copper is used for making electrical wire while silver is not(v) Cooking utensils are metal whereas their handles arewooden(vi) Sodium is stored in kerosene(vii) White phosphorus is stored in water(viii) Gold and silver are suitable for making jewellery

Answer 1

1)as iron is more reactive than gold it has more tendency to form compounds by reacting easily with other elements on the other hand gold being less reactive cant easily form compounds so it is presnt in free state. 2)when you will see reactivity series iron is sodium is placed above irom i.e Na is more reactive than Fe.being more reactive it can react even at cold temp i.e with less or no heat
3)