Question

In a closed container 1 mol of CO2 is present, which is completely replaced by 1
mole of NO2 under identical condition then, which of the following is correct?

(1)Mass inside the container will be decreased
(2)Number of atoms of oxygen will be changed
(3)Density inside the container will increase
(4)Number of total atoms inside the container will be changed.​

Answer 1

Answer:

option 4

Explanation:

I think so

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