Question

Iron powder and powder of rust are taken in two containers X and Y
respectively. Dilute HCl is added to both the containers. Then
A
Effervescence is observed in two containers
00
Effervescence is observed in case of x but not Y
С
Effervescence is observed in case of Y but not X
D
No effervescence is observed in both cases

Answer 1

Answer:

Option B

Explanation:

Effervescence will be only observed in case X but not Y.

Answer 2

B is the correct answer from the above-mentioned options. - Effervescence is observed in the case of x but not Y

This is Because iron is an element and rust is a compound of iron formed due to the action of oxygen and humidity in the atmosphere, in which iron loses its characteristics, rust does not release hydrogen gas when exposed to dilute sulphuric acid, and there is no effervescence in container Y.