Give scientific reasons
It takes time for pieces of shahabad tiles to disappear in `HCI, but its powder disappears rapidly.

Explanation

The rate of a chemical reaction depends upon the size of the reactant particles taking part in the reaction.
ii. Smaller the size of the reactant particles, higher ts the rate of reaction
iii. When HCl is added to pieces of Shahabad tile,the `CO_2` effervescence is formed slowly. However, when HCl is added to Shahabad powder , the `CO_2` effervescence is formed at a faster rate. Hence, it takes time for pieces of Shahabad tile to disappear in HCI, but its powder disappears rapidly.