Question

5. In the reaction between copper sulphate solution and iron nails, the brown coloured deposit on
iron nails is
a. iron
b. melanin
c. copper
d rust
In the reaction herween vinegar and baking soda the gas ralwed​

Answer 1

Answer:

(d)- Copper

carbon dioxide gas

Explanation:

In the reaction between copper sulphate and iron nail, iron being more reactive then copper displaces it and forms ferric/iron sulphate and brown copper deposits. This reaction is called displacement reaction.

The reaction between baking soda (sodium bicarbonate) and vinegar (dilute acetic acid) generates carbon dioxide gas.

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