Give reasons for the following:-
a. Base of the cooking utensils are coated with copper.
b. Pickles cannot be kept in the container made of metals like copper and aluminium.
Answers
Answer:
a. Because copper is a good condictor of heat so the utensil gets heated quickly.
b. Because metals like aluminum readily react with acid to liberate hydrogen gas. This can lead to spoiling of the pickle.
Hope this helps
Answer:
a) WHY THE BASE OF COOKING UTENSILS ARE COATED WITH COPPER? AS WE KNOW THAT, COPPER IS A GOOD CONDUCTOR OF HEAT. IN COOKING UTENSILS SUCH METALS ARE USED WHO ARE GOOD CONDUCTORS OF HEAT, SO THAT, THE FOOD GETS COOKED FAST AND WITHIN SHORT TIME. AS COPPER IS A GOOD CONDUCTOR, IT IS USED AT THE BASE OF COOKING UTENSILS
Explanation:
b) Materials : Metals And Non-Metals
Certain food stuffs such as citrus fruits, pickles and curd should not be stored in containers made of metals such as copper, zinc, aluminium and iron. This is because these food stuffs contain acids which react with these metals to produce toxic and poisonous compounds.