![During the preparation of HCl gas on a humid day, the gas is usually passed through the guard tube containing CaCl₂. The purpose of using CaCl₂ is](https://www.gkseries.com/blog/wp-content/uploads/2021/12/During-the-preparation-of-HCl-gas-on-a-humid-day-the-gas-is-usually-passed-through-the-guard-tube-containing-CaCl₂..png)
Q. During the preparation of HCl gas on a humid day, the gas is usually passed through the guard tube containing CaCl₂. The purpose of using CaCl₂ is
- To add moisture to the gas (HCl)
- To absorb HCl gas
- To absorb moisture from HCl gas
- To Use it as a catalyst
Answer: To absorb moisture from HCl gas