Question

please give me the answers of these questions​

Answer 1

1)b)4Na+O2⟶2Na2O

2)d)A double displacement reaction

3)c)No reaction takes place

Iron is more reactive than copper.

Hence, Cu will not displace iron from iron sulphate, hence, no reaction will take place.

4)c)The solution remained colourless

Hydrogen is evolved by the reaction of dilute non oxidizing acids on reactive metal such as zinc and burns with a pop sound. The solution remained colourless.

Answer 2

Answer:

1. b option
2. d option
3. c option
4. b option