Saved Bookmarks
| 1. |
Curd and sour substances should not be kept in brass and copper vessels because these and other sour food-curd contain acids which can react with the metal of the vessel to form poisonous metal compounds which can cause food poisoning and affect our health adversely.1. Curd is a ______ substance?(i) Sweet(ii) Sour2. Sour substances kept in _____ metals can affect our health(i) Copper(ii) Brass(iii) Both A and B3. Does copper has malleablity property?(i) YES(ii) NO4. State True or False. Food stuffs contains acid which reacts with the metals.(i) TRUE(ii) FALSE5. Brass is an alloy of_____.(i) Copper and iron(ii) Copper and zinc |
|
Answer» 1. (ii) Sour 2. (iii) Both A and B 3. (i) YES 4. (i) TRUE 5. (ii) Copper and zinc |
|